Why People Can Always Tell When AI Wrote Your Text
Young adults are letting ChatGPT draft their texts and hard conversations. Here's why it's obvious and what actually works instead.
Statistics is the practice of collecting and analysing data and then interpreting it to draw conclusions or make predictions. A statistician is a professional who has expertise in this field and can help clients to meet their goals, from making data-driven decisions to gaining meaningful insights.
Statistics can bring clarity to different types of data which can range from marketing data to surveys, sales records to medical tests and more. With the help of an expert statistician, clients will be able to interpret their complex datasets in order to make sense of the results. A statistician will be able to provide detailed insights into a wide range of different topics.
Here's some projects that our expert Statistician made real:
Our stats expert can help clients with any project they have on their plate. With the right knowledge and experience, they can push your business forward. If you need several projects done or one particularly tricky project, our statisticians on Freelancer.com are available for hire here and now. Hire an expert today to get your project underway!
จาก 89,528 รีวิว ลูกค้าให้คะแนน Statisticians 4.83 จาก 5 ดาวStatistics is the practice of collecting and analysing data and then interpreting it to draw conclusions or make predictions. A statistician is a professional who has expertise in this field and can help clients to meet their goals, from making data-driven decisions to gaining meaningful insights.
Statistics can bring clarity to different types of data which can range from marketing data to surveys, sales records to medical tests and more. With the help of an expert statistician, clients will be able to interpret their complex datasets in order to make sense of the results. A statistician will be able to provide detailed insights into a wide range of different topics.
Here's some projects that our expert Statistician made real:
Our stats expert can help clients with any project they have on their plate. With the right knowledge and experience, they can push your business forward. If you need several projects done or one particularly tricky project, our statisticians on Freelancer.com are available for hire here and now. Hire an expert today to get your project underway!
จาก 89,528 รีวิว ลูกค้าให้คะแนน Statisticians 4.83 จาก 5 ดาวSeeking a midwest expert to do IN PERSON TESTING(S) Audits in CHICAGO for college-level mathematics placement exam(s). You must be a male between the ages of 20-40 years of age. Recent Headshot required. Be able to pass college alegbra-calculus level. This is not a remote position. This is an in person or online proctored exam in and around the Chicago area. No outside of USA applicants will be considered. Key Requirements: - The Protored exam(s) will take place in CHICAGO or surrounding suburbs. You should be Alegbra Calculus level math or higher college-level math skills. Pay is $50-100 per hour (1-3 hours work.) Contract work will be on a Per needed basis. Flexible schedule , where you get to pick the time of the test(s) withing daily operational times and how many you would like to ...
I’m looking for thorough competitor analysis within the healthcare space to guide an upcoming strategic review. I will supply a short list of direct and indirect competitors; from there I need you to dig deep and turn raw data into clear, decision-ready insight. Your task covers the full research cycle: gathering publicly available information, identifying product and service lines, pricing models, key differentiators, recent funding or partnerships, market share indicators, and any patient or customer sentiment you can source from review sites or social channels. Feel free to tap industry databases, annual reports, SEC filings, Statista, PubMed, and similar resources—whatever yields verifiable facts. Please structure findings in a concise slide deck or report accompanied by ...
I’m an undergraduate student who wants to meet once or twice a week for help mastering the fundamentals of Python and preparing for upcoming assessments. My priority is the core building blocks: • Data types and variables • Control structures—if/else logic and loops • Functions and basic module use I learn best through a mix of clear explanation and plenty of hands-on coding, so each session should balance walkthroughs of the concepts with short practice problems we solve together. Screen-sharing and live coding in an IDE such as VS Code or Jupyter Notebook are ideal; I’ll run Python 3.11 on my end. By the end of each lesson I’d like a brief set of takeaway notes or annotated scripts I can revisit, plus a few extra exercises to tackle bet...
Saya sedang mencari tutor yang sabar dan berorientasi pada hasil untuk membimbing saya di dua mata kuliah inti—Riset Operasional dan Ergonomi—sehingga saya dapat menghadapi ujian kampus yang akan datang dengan percaya diri dan langsung lulus pada kesempatan pertama. Semua sesi akan diadakan secara online, jadi harap pastikan Anda terbiasa menggunakan aplikasi video conference dan papan tulis kolaboratif (collaborative whiteboards) untuk memecahkan masalah secara real-time. Fitur berbagi layar (screen sharing) untuk membahas contoh soal dan soal-soal ujian sebelumnya adalah syarat wajib. Berikut adalah hal-hal yang saya butuhkan dari Anda: Penjelasan tahap demi tahap yang jelas untuk teori-teori dan rumus-rumus utama. Kumpulan latihan soal terstruktur yang menyerupai tipe...
I want to launch an Android app that lets users search a full catalogue of mutual funds, narrow the list with flexible filters (by category, risk, expense ratio, etc.), and then view clean side-by-side comparison charts of any funds they pick. MPAndroidChart—or another modern library—can be used for the graphing. Access to the app should be protected only by social-media sign-in. Google and Facebook SDK integration will be enough; I don’t need any email/password flow. Please build natively in Kotlin, following a clean MVVM pattern in Android Studio. I’ll hook up the final data source later, so include a well-defined repository layer and dummy REST endpoints plus a Room cache for smooth offline behaviour. Deliverables • Complete Android Studio projec...
I have a dataset that needs a focused trend analysis and I’d like your help with the data cincse side of things. What matters most to me is uncovering clear patterns, explaining what drives them, and presenting the results in a way that makes next-step decisions obvious. Here’s what I have in mind: • Work through the raw data, clean it where necessary, and structure it for analysis. • Carry out the core trend analysis, highlighting any seasonality, upward or downward movements, and outliers that deserve attention. • Summarise the findings visually—charts, dashboards, or other intuitive visuals—so stakeholders can grasp the story at a glance. • Deliver a concise report (code notebook or slide deck) that walks through your methodology and ke...
I have already screened and extracted data for 36 studies in Covidence; the export sits in a single CSV. Before any statistics can run, that file still needs to be cleaned and mapped to RevMan-friendly fields, then loaded into RevMan to generate my descriptive meta-analysis outputs. Here’s what I need from you over the next two weeks: • Re-format and clean the CSV so study IDs, comparison arms, outcome names, effect sizes, and variances align with RevMan 5.4 (or newer) requirements • Enter the data into a new RevMan project, structuring all comparisons and outcomes as per my protocol • Produce the standard descriptive outputs: forest plots, overall effect estimates, heterogeneity statistics, and any RevMan summary tables • Return the completed .rm5 file pl...
I have already extracted all modal-verb tokens from two learner corpora—one tagged “Intermediate,” the other “Advanced”—and calculated their normalized frequencies (per 10,000 words). What I still need is a statistically sound comparison of those frequencies. Please run log-likelihood (LL) tests in SPSS to determine whether the differences between the two proficiency levels are significant. If the LL results indicate that additional inferential statistics would clarify the picture—say, a follow-up effect-size measure or confidence interval—you may include them, but keep the focus on the LL output itself. Deliverables • SPSS syntax file and/or detailed steps so I can replicate the procedure • The SPSS output tables and a brief ...
I have a dataset that needs to be explored in Excel to uncover clear, actionable marketing insights. Your task is to clean the data, build the right pivot tables or Power Query steps, and present trends, segments, and key performance indicators in easy-to-read charts and summaries. What I expect • A tidy, well-documented workbook with formulas or macros that I can reuse. • Dashboards or pivot charts highlighting customer segments, campaign performance, and any anomalies worth noting. • A short written summary (one page is fine) explaining the findings and suggested next steps. To help me choose quickly, please attach examples of previous work where you performed similar Excel-based marketing analysis. Screenshots or a brief description of the outcome are enough; no sen...
Je cherche un expert en analyse de données pour examiner un ensemble de données financières et en extraire les informations clés que je pourrai ensuite partager facilement avec mon audience. Contexte – Type de projet : Analyse de données – Objectif final : Partager des informations claires et pertinentes issues de mes données financières Ce que j’attends de vous 1. Nettoyer et préparer le jeu de données (format CSV ou Excel). 2. Explorer les variables principales afin de détecter tendances, anomalies et corrélations. 3. Produire un rapport synthétique accompagné de visualisations lisibles (tableaux de bord, graphiques interactifs ou statiques). 4. Formuler des reco...
I need a clean, visually engaging Power BI report focused on financial reporting. The model will draw its data exclusively from a set of structured Excel workbooks that I will provide; each file contains revenue, expense, P&L and cash-flow tabs that refresh monthly. My goal is to see all three perspectives—revenue vs expense, profit & loss, and cash-flow—through interactive dashboards that let management drill from a high-level summary down to individual account lines and months. A consistent color palette, intuitive slicers and clear KPI cards are important so the board can grasp performance in seconds. You will be free to suggest the most suitable visuals (e.g., waterfall charts for cash movements, clustered bars for revenue comparisons, matrix views for P&L) ...
I trade actively every day and have fresh capital ready, but I want a proven swing-trading partner who can spot high-probability set-ups in both the stock market and the forex market. The ideal collaborator is comfortable holding positions anywhere from a few hours to several days, reading multiple time-frames, and managing risk decisively without slipping into scalping or long-term buy-and-hold. Here’s how I see us working together: you flag opportunities, outline the technical or fundamental catalyst, and specify entry, stop, and clear profit targets. I execute quickly, keep detailed logs, and share real-time feedback so we can refine the strategy. I’m results-oriented, so concise communication and disciplined trade management are essential. When you respond, focus on your ...
I need a data-savvy partner who can take my raw dataset and run a thorough descriptive analysis, then translate the numbers into clear stories about the trends and patterns hiding inside. I’m interested in measures such as frequencies, central tendency, dispersion, and time-based or categorical comparisons that highlight shifts over periods, segments, or any other meaningful dimension you discover. Here is what I’d like to see when the work is finished: • A cleaned, well-documented dataset (CSV or XLSX) • A concise report (PDF or Google Doc) that walks me through your methodology, key findings, and visual evidence—think charts, heat maps, or dashboards created in Python (pandas, matplotlib, seaborn), R (tidyverse), Excel, or Tableau, whichever you’re mo...
Please don't bid if you are not live is US or Canada. I am building a multi-year position in carefully chosen altcoins and want a trader who can shape every move with disciplined technical analysis. The goal is simple: identify solid entry zones, manage risk as the market evolves, and outline realistic exit targets that let gains compound rather than vanish in volatility. Here is what I need from you: • A shortlist of altcoins that show long-term upside on higher-time-frame charts, with clear justification drawn from trend structure, support-resistance levels, volume patterns, and moving-average confluence. • A step-by-step accumulation plan that specifies percentage allocation per coin, staggered buy ranges, and protective stop-loss placements. • Ongoing chart upd...
I’m looking for someone who can turn a raw stack of figures related to the Kerala-based market into clear, usable insights. The material—labels, column headers and many open-ended responses—comes in Malayalam, so the ability to read the language accurately is essential. My own background is in BBA, but I need an experienced hand for the analytics stage. Your core strength should be data analysis; how you get there is up to you, whether that’s Microsoft Excel, SPSS, Python or a mix that suits the size of the job. What I expect from you • A cleaned and well-structured data set • Descriptive statistics with any significant trends highlighted • Simple visualisations (charts or dashboards) that I can drop straight into a report • A brief...
I’m looking for a patient, qualified tutor to guide my Grade 7 middle-schooler IB curriculum through the full mathematics syllabus. The goal is to build confidence in problem-solving and making the foundation of concepts strong. Online sessions are preferred. Looking forward to working together to make math a strong subject this year.
I'm seeking an experienced developer to create a comprehensive cash flow and budget tool tailored for both household and business use. I would like a dashboard/cover sheet that shows everything in a snapshot. Then separate tabs for each of our business entities and our household. Essential Features: Household: - Expense Tracking: Monitor and categorize household expenses. - Budget Planning: Set and manage budgets for various household categories. Business: - Expense Tracking: Record and categorize all business expenses. - Income Tracking: Monitor all business income sources. - Budget Forecasting: Predict future budgets based on income and expenses. Ideal Skills: - Proficiency in financial software development - Strong background in budgeting and financial planning - Experience wit...
I'm seeking a detailed analysis of WhatsApp messages. The goal is to understand conversation patterns and communication dynamics within a group chat. Key Focus Areas: - Response Time Analysis: How quickly do participants reply? - Interaction Frequency: Who talks to whom, and how often? - Message Length Patterns: Variations in message lengths among participants. - Collaborative Healthy Communication: Identifying positive, constructive exchanges. - Non-Collaborative Unhealthy Communication: Spotting negative or destructive interactions. - Requests for Transparent Communication: Tracking demands for clarity in discussions. Ideal Skills & Experience: - Experience with data analysis tools - Familiarity with sentiment analysis - Ability to visualize data patterns - Strong analytical s...
Python Quant Researcher Needed to Validate CRT and VWAP Futures Strategy I am looking for a quantitative researcher or Python developer to statistically test a futures trading strategy based on session VWAP, VWAP deviation, and CRT session-range sweeps and reclaims. This project is focused on mathematical validation and signal research. It does not include automated order execution or Tradovate integration. Markets and Sessions The initial research will cover: * YM/MYM during the New York session * Gold GC/MGC during the London session * Gold GC/MGC during the New York session * Silver SI/Micro Silver during the London session * Silver SI/Micro Silver during the New York session The same core strategy framework should be applied across all instruments so that the results can be compared ...
AI-Powered Sales Analytics Dashboard & Business Insights Developed an intelligent AI-Powered Sales Analytics Dashboard that transforms raw sales data into actionable business insights using Machine Learning and Business Intelligence techniques. The solution enables organizations to monitor sales performance, identify customer buying patterns, predict future sales trends, and make data-driven strategic decisions. The project leverages Python, Pandas, NumPy, Scikit-learn, and Power BI to clean, process, analyze, and visualize large volumes of sales data. Machine Learning algorithms are used for sales forecasting, trend analysis, customer segmentation, and predictive analytics, allowing businesses to anticipate demand, optimize inventory, and improve revenue growth. AI-driven insights hel...
I have a time-stamped dataset that needs to come to life through clear, insightful line-chart visualizations. Your task is to take the raw data, tidy it where necessary, and build one or more line charts that make long-term trends, seasonality, and sudden shifts immediately obvious. Interactive output is preferred so I can hover, zoom, and filter, but I am open to a polished static alternative if that suits your tooling better. You may work in Python (pandas, matplotlib, seaborn, plotly), R (ggplot2, shiny), or a dashboard environment such as Tableau or Power BI—choose the stack you are most productive with. While my focus is on line charts, I’m happy to consider complementary visuals like heat maps or scatter plots if you believe they strengthen the story the data tells. Ple...
I have a recently published randomized clinical trial from JACC and I need a seasoned biostatistician to walk me through it right away. My main focus is the results section: I want to understand exactly what the reported effect sizes, confidence intervals, and p-values tell us about clinical relevance. Along the way, please also clarify how the randomization process was handled so I can judge its adequacy and any potential bias. You should be fluent in the common analytical approaches used in cardiovascular trials—time-to-event modelling, mixed models, subgroup analyses—and comfortable translating them into language that a non-statistician can grasp. If you can point out subtle issues such as multiplicity adjustments or assumptions behind each test, that’s a plus. Becau...
* Biostatistics * Clinical Research * Epidemiology * Medical Writing * Statistics * SPSS / SAS / R (optional)
I’m advancing a new study in the biological sciences and need a versatile researcher to help move it from concept to clear, publish-ready results. The exact sub-discipline is still being finalized, so I’m open to talent with strengths in genetics, microbiology, ecology or adjacent fields. Here’s what I expect us to tackle together as the project evolves: • Clarify the research question and map the most relevant, up-to-date literature. • Refine or build an experimental or observational design that is practical and statistically sound. • Perform rigorous data handling and analysis in R, Python, SPSS or another platform you’re comfortable with, documenting every step so it is fully reproducible. • Transform the findings into a concise repo...
J’ai besoin de remettre à neuf un jeu de données qui présente aujourd’hui des doublons, des incohérences et quelques valeurs manquantes. Ta mission se concentre exclusivement sur le nettoyage : • repérer et supprimer les doublons, • harmoniser la mise en forme (dates, majuscules/minuscules, nombres), • identifier les valeurs aberrantes ou manquantes et proposer une stratégie de correction ou d’imputation, • livrer un fichier propre et prêt pour l’analyse. Je travaille habituellement sous Excel, mais je reste ouvert à une approche Python ou SQL si elle accélère le traitement ou assure une meilleure traçabilité. Dans tous les cas, je souhaite : 1. Le fichie...
The project centers on producing a full set of Common Core–aligned math worksheets for Grades 6, 7, and 8. Every task should challenge students through genuine problem-solving rather than simple recall, and each worksheet must appear in three differentiated versions so teachers can reach varied ability levels in a single lesson. Scope of content Algebra, Geometry, and Probability & Statistics are all in play—I want a balanced mix that ultimately touches every standard within those strands. Feel free to weave in number sense or other supporting skills whenever they naturally support the main topic, but keep the primary focus on the standards listed above. Worksheet structure Each worksheet should contain clear instructions, eight to twelve well-sequenced problems, and ...
I need a well-structured policy analysis that examines current national economic measures, evaluates their effectiveness, and recommends evidence-based improvements. Your work should move beyond a narrative overview and drill into hard data—macroeconomic indicators, recent legislative changes, and credible economic forecasts—to explain how existing policies are shaping growth, employment, and public revenue. Here is what I expect to receive: • An executive summary highlighting key findings and actionable recommendations • A detailed report (≈ 4,000–5,000 words) that covers methodology, data sources, analysis, and policy options • All supporting data sets or links, clearly referenced so I can verify numbers and replicate calculations Please base ...
I have a set of raw sales figures that needs to be turned into clear, insightful summaries. You will work directly in Excel—leveraging pivots, basic statistical functions, and well-labeled charts—to calculate totals, averages, growth rates, and any other descriptive measures that reveal performance patterns across products, regions, or time periods. Once the numbers are crunched, I’d like the key findings distilled into a short Word report that highlights the main take-aways and embeds the most relevant charts for quick reference. Clean formatting, sensible headings, and easy-to-read visuals are all I’m after. Deliverables: • An Excel workbook with all formulas intact, dynamic tables, and neatly formatted charts. • A concise Word summary (no more...
My daughter is in 9th standard, Kerala syllabus (English medium), and she struggles with mathematics concepts more than with homework or test drills. I would like someone who can patiently break down the core ideas, work through plenty of examples, and make sure she can apply what she learns without relying on rote steps. Evening slots suit us best. We are open to either online sessions or, if you are nearby, in-person classes—whichever lets you teach most effectively. A steady rhythm of two or three meetings each week should be enough, but I am flexible if you recommend a different pace once you assess her current level. Please outline: • How you normally explain abstract topics such as algebra, geometry, and statistics to students who feel “lost.” • The ...
I need two comprehensive theses in the field of comparative biology. Requirements: - In-depth knowledge of comparative biology - Ability to conduct thorough research and analysis - High-level writing skills for academic theses Ideal Skills: - Advanced degree in Biology or related field - Experience with comparative studies - Strong analytical and critical thinking skills - Proficiency in academic writing and formatting Please provide samples of previous thesis work.
I need a modular Python application that automatically fetches market data and ranks stocks using both technical and fundamental criteria, with a backtesting module for testing screening/ranking rules on historical data before live usage. The system should include: - Automated price and fundamental data fetching. - MA, RSI, MACD, ATR, ADR, VWAP, Bollinger Bands, Stochastic, SuperTrend, volume and breakout/swing-high logic. - Distance from 52-week high. - Pattern detection for Double Top, Head & Shoulders, and Triangle patterns. - Configurable technical + fundamental scoring/ranking system. - Historical backtesting with key metrics such as returns, win rate, drawdown and Sharpe ratio. - CSV/SQLite storage. - Exportable ranked screener results. - Logging and modular code for adding aler...
I’m working on medical diagnostic data meta-analyses. Some data come from direct presentations of raw data, some from logistic-regression output, others from ROC curves, and I would like to know when it is defensible to “reverse-engineer” true-positive, false-positive, false-negative and true-negative counts from summary measures such as sensitivity, specificity or AUC or regression. Here’s what I’m looking for you to deliver: • A short, clearly written memo and/or a brief call that walks through and states whether the back-calculation is appropriate in a number of example case. I will be happy to provide additional explanation of intended methods (hsROC) and provide som examples of references or excerpts of published data that I am not sure is appropria...
I am a final-year Industrial Engineering student at Stellenbosch University and need help creating a professional LinkedIn profile from scratch. My goal is to position myself for opportunities in Artificial Intelligence, Machine Learning, Data Science, Data Analytics, Business Intelligence and technology-focused consulting. I am particularly interested in roles and research that combine engineering, data and AI to solve practical organisational problems. I also plan to continue with postgraduate study after completing my degree, most likely a two-year research master’s and potentially a three-year PhD in AI, machine learning, data science or a related interdisciplinary field. The profile should therefore appeal not only to graduate employers, but also to academic supervisors, researc...
Our raw sales dataset needs a full analytical pass that starts with rigorous data cleansing. The main focus is on standardising every field—dates, currencies, product codes, customer IDs—so the data can be trusted for downstream reporting. Once the formats are consistent, I want a concise exploratory analysis in Python (Pandas, NumPy, Matplotlib or Seaborn) that highlights high-level trends, seasonality, and any obvious outliers. If you spot missing values or duplicate rows along the way, feel free to resolve them; the primary acceptance criterion, however, is clean, consistently formatted data backed by a short insight summary. Deliverables • Python notebook or script that performs the cleaning and analysis • A cleaned CSV (or Parquet) file ready for further ...
Job Title: Micro Task Specialist Overview: Are you a detail-oriented individual with a knack for tackling micro tasks efficiently? We are seeking a skilled Micro Task Specialist to join our dynamic team. As a Micro Task Specialist, you will be at the forefront of optimizing processes, ensuring accuracy, and contributing to the seamless functioning of our diverse range of projects. Responsibilities: Micro Task Execution: Dive into a variety of micro tasks, from data entry to research, with precision and attention to detail. - Task Optimization: Identify opportunities to enhance task efficiency, suggesting improvements that contribute to overall productivity. -Multi-Company Collaboration: Work on tasks from 25 different companies, showcasing your adaptability and versatility in manag...
I need a browser-based application where a user can drag-and-drop CSV, Excel, or JSON files, then talk to the system in plain English to fix messy data—especially rows or columns riddled with missing values. After the cleaning step, the same conversational interface should let the user request summary statistics, build quick charts, or even forecast trends. The workflow must always begin with a rock-solid imputation or other suitable treatment of nulls. Core flow I have in mind: 1. Upload: accept the three formats above and automatically profile the dataset. 2. Clean: surface any fields with gaps, let the user choose (or confirm an AI suggestion) for how those gaps are handled—mean/median substitution, forward fill, deletion, etc.—and produce a cleaned version that can b...
I need a clear, well-sourced written document that pulls together up-to-date medical information on schizophrenia, with the emphasis squarely on research findings and statistics. Think of it as a concise reference dossier I can consult whenever I need hard numbers or recent study outcomes—prevalence rates, demographic breakdowns, comorbidity figures, treatment-response percentages, and any landmark trials published in the last five years. Please organise the material logically (epidemiology, neurobiological insights, pharmacological research, psychosocial data, etc.) and cite each fact with its original academic source using either APA or Vancouver style—whichever you are most comfortable with, just stay consistent. A short abstract at the top and a properly formatted referenc...
I’m preparing a study that explores how leader burnout affects ethical leadership in healthcare organizations, both directly and indirectly through ego depletion. To move forward, I need expert help with the full survey-based research workflow. Scope of work • Turn my conceptual model (Burnout ➔ Ethical Leadership, plus Burnout ➔ Ego Depletion ➔ Ethical Leadership) into a clear, publishable study design. • Develop or refine survey and questionnaire items that capture: – Emotional exhaustion – Depersonalization – Personal accomplishment – Ego depletion – Ethical leadership behaviours • Ensure items are worded for healthcare leaders, who will be the sole respondents. • Set up the instrument in a platform s...
Young adults are letting ChatGPT draft their texts and hard conversations. Here's why it's obvious and what actually works instead.
OpenAI's model broke its own security test and attacked Hugging Face. Here's why AI still can't test AI safely.
Huge opportunity for ongoing work from a massive new Freelancer project