Analysis Challenges
Diagnose, segment, model — turn a real situation into a sharp recommendation.
- AnalysisBeginnerNew
Revamping Motivation at a São Paulo D2C Cosmetics Startup
Your task is to conduct a motivational audit using Herzberg's two-factor theory and self-determination theory. You will interview (simulated) employees, identify hygiene and mot…
- Motivation Theory
- Diagnostic Analysis
- Change Management
Open coursework - AnalysisSeniorNew
Investigate Coffee-Price and Euro Risk for a Vietnamese Exporter
Investigate using only the materials provided. First, observe the real market: track how the Intercontinental Exchange (ICE) robusta coffee futures settlement price and the euro…
- IFRS 9
- Hedge Accounting
- Derivatives
Open coursework - AnalysisBeginnerNew
Run an A/B Test on Two System Prompts for a Sales Email Assistant
You will (1) design the A/B test (random assignment by rep_id, 50/50 split, 2-week duration), (2) instrument three primary metrics: reply rate (event-based), average tokens per …
- Prompt Evaluation
- Ab Testing
- Metric Design
Open coursework - AnalysisIntermediateNew
Catastrophic-Forgetting Audit on a Domain Fine-Tune
You receive the fine-tuned 7B chemistry model and its base, plus a benchmark basket (MMLU subset, GSM8K, IFEval, a small instruction-following set). Run all 4 benchmarks on both…
- Catastrophic Forgetting
- LLM Evaluation
- Fine Tuning
Fine-Tuning Large Language Models Develop in-demand professional skills.
Each challenge names the skills it strengthens. Over time, your profile fills with the competences a hiring manager would actually look for.
Why Ewance
- AnalysisBeginnerNew
Diagnose Query Failures in an E-Commerce Search Box
You receive 6 months of anonymized query logs (~480 million rows): query string, language hint, results-shown count, top-3 product clicks, and add-to-cart events. Build a notebo…
- Query Log Analysis
- Clustering
- Ir Failure Analysis
Open coursework - AnalysisBeginnerNew
Rule on TaskFlow's Enterprise Landing Page A/B Test
Working only from the test results dataset and the test-setup brief in the provided materials, determine whether the redesigned page genuinely improves the demo-booking conversi…
- Hypothesis Testing
- A B Testing
- Chi Square Test
Open coursework - AnalysisBeginnerNew
Audit a Hiring-Screening Model for Demographic Bias
You receive: (a) inference API access to the production model (black-box), (b) a 12,000-resume audit benchmark with self-declared gender and age-band labels (consented, GDPR-com…
- Fairness Metrics
- Bias Auditing
- Model Evaluation
AI Ethics, Fairness, and Responsible AI - AnalysisBeginnerNew
Exploit and Remediate Eight Web Flaws on a FinTech Practice Range
Using the eight challenge specifications in the provided challenge specification brief and the representative Rails module in the provided vulnerable application source bundle (…
- Web Security
- OWASP Top 10
- Penetration Testing
Open coursework - Browse challenges
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Pricing Strategist
Set the price that captures value without leaving sales on the table. Demand modelling, willingness-to-pay research, and the disciplined experimentation that turns pricing into a competitive advantage.
- AnalysisBeginnerNew
Sales Performance Analysis for a 40-Person SaaS Scale-Up
You will receive a dataset containing 500+ sales opportunities with fields like deal value, stage, source, close date, and account size. Your challenge is to design a data mart …
- Data Warehousing
- Etl
- Olap
Open coursework - AnalysisIntermediateNew
Evaluate an Agent Suite on the SWE-Bench-Style Coding Benchmark
You receive a sandboxed set of 50 small repo-modification tasks (test-passing as the success signal). Run 3 open-source agent frameworks (e.g., OpenHands, SWE-agent, and Aider) …
- LLM Agents
- Agent Evaluation
- Benchmarking
Open coursework - AnalysisBeginnerNew
Evaluate Speech-to-Text Quality for a Contact-Center Analytics Vendor
You receive 200 anonymized call-recording snippets (2-4 minutes each, ~67 per language) with reference transcripts plus a domain glossary of about 600 product terms. Run all thr…
- Speech Recognition
- Sequence Models
- Model Evaluation
Machine Perception - AnalysisBeginnerNew
Re-segment a SaaS Customer Base by How Accounts Actually Use the Product
Using the provided usage signals dataset, engineer features that capture how deeply and how often accounts use the product (not just raw volume), standardize them, and run at le…
- Clustering
- K Means
- Hdbscan
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- AnalysisBeginnerNew
Index a Slow 90-Million-Row FinTech Reporting Database
Your analysis task is to read the engineering ticket and the six reporting queries in the case file (M1), study the transactions table definition, column statistics, and write w…
- Indexing
- Query Optimization
- Explain Analyze
Open coursework - AnalysisIntermediateNew
Audit BLEU vs. COMET on a Multilingual Customer-Support Corpus
You receive 600 source-translation-reference triples covering 6 languages (EN as source; ES/FR/DE/JA/PT-BR/HI as targets), each scored on adequacy and fluency (1-6) by 3 profess…
- Mt Evaluation
- Neural Mt
- Statistical Analysis
Machine Translation - AnalysisFoundationalNew
ESG Reporting Gaps for a 40-Person SaaS Scale-up
You are an ESG analyst tasked with helping DataFlow prepare for enterprise client ESG requirements. Your deliverable is a materiality matrix, a set of key ESG indicators (KPIs),…
- Materiality Assessment
- ESG Metrics
- Sustainability Reporting
Open coursework - AnalysisBeginnerNew
Inflation Hedging for a Lagos D2C Cosmetics Brand
Your task is to analyze recent inflation data, Central Bank of Nigeria (CBN) monetary policy, and USD/NGN exchange rate trends. Then, propose a combination of financial instrume…
- Inflation Analysis
- Monetary Policy
- Exchange Rate Forecasting
Open coursework - AnalysisBeginnerNew
Transfer Pricing for a Mumbai D2C Cosmetics Startup
Your task is to recommend a transfer pricing method (e.g., market-based, cost-plus, or negotiated) for the sale of products from France to Spain. Provide a detailed analysis of …
- Transfer Pricing
- Tax Analysis
- Managerial Accounting
Open coursework - AnalysisBeginnerNew
Developer-Experience Audit of a Public REST API
Using only the four provided materials, audit the version 3 candidate API as if you were a first-time developer. Read the audit charter ('audit_brief') to understand the foundat…
- Developer Experience
- API Design
- Documentation
Open coursework - AnalysisBeginnerNew
Requirements Elicitation for a Sustainable Fashion Platform
Conduct stakeholder interviews (simulated via provided personas) and create a requirements specification. Include functional and non-functional requirements, user stories, accep…
- Requirements Elicitation
- User Stories
- Acceptance Criteria
Software Engineering and Quality Assurance - AnalysisFoundationalNew
Bookkeeping Reset for a Lisbon Specialty Coffee Roaster
Work only from the transaction log provided as a CSV (the 'Café Atlântico quarterly transaction log'). For each of the roughly 60 to 80 transactions, write a double-entry journa…
- Double Entry Bookkeeping
- Journal Entries
- Trial Balance
Open coursework - AnalysisBeginnerNew
Refit a Pricing Model for an Insurance Comparison Site
You receive 9 months of quote-impression data (about 14 million events) with about 60 features and click labels. Refit logistic regression with elastic-net regularization plus a…
- Regularized Regression
- Feature Interactions
- Calibration
Statistical Machine Learning - AnalysisSeniorNew
Forensic Reconstruction of an Anonymized Energy-Grid Incident
Treat this as a case file and work timeline-first. From the incident intake record (intake-file), establish the known facts and the 19-minute window. Reconcile the remote-termin…
- Digital Forensics
- Incident Response
- Ics Security
Open coursework - AnalysisBeginnerNew
Cost of Capital and Capital Structure for a Renewable Energy Firm
Your task is to estimate GreenGrid's current cost of equity using CAPM (risk-free rate 2%, market risk premium 6%, beta 1.2), cost of debt (4.5% pre-tax), and tax rate (22%). Th…
- Wacc
- Capm
- Capital Structure
Corporate Finance - AnalysisBeginnerNew
Lease Accounting for a Restaurant Chain
Your team's task is to implement ASC 842 for Taco Fresco's 50 leases. You have a spreadsheet with lease data: commencement dates, terms, renewal options, annual rent (including …
- Lease Accounting
- ASC 842
- Present Value
Open coursework
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Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
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Step 06
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