Data Sciences Challenges
Explore data science challenges on Ewance to build skills employers expect from analysts and ML engineers. Work through challenges on data cleaning, exploratory analysis, modeling, and storytelling with data.
Most Popular
- AnalysisBeginnerNew
Investigate Churn Drivers for NordicGlow Cosmetics Customers
Work only from the two materials NordicGlow has handed you: the customer behaviour dataset (ds-nordicglow-customers) and the founder's retention brief (brief-nordicglow-ceo). Be…
- Data Preprocessing
- Feature Engineering
- Classification
Open coursework - AnalysisBeginnerNew
Pricing Strategy for a Singapore D2C Cosmetics Brand
You are a decision analyst hired by Glow Singapore. The CEO wants to set the launch price for a new vitamin C serum. You have estimates of demand at three price points (S$25, S$…
- Decision Trees
- Sensitivity Analysis
- Expected Value
Open coursework - AnalysisBeginnerNew
Hedging FX Risk for a Sydney D2C Cosmetics Brand
You are a risk management consultant hired by GlowSydney. Analyze the company's FX exposure using provided data on forecasted USD payables and AUD receivables. Recommend a hedgi…
- Fx Hedging
- Derivatives Pricing
- Financial Modeling
Open coursework - StrategyBeginnerNew
SEO Growth Strategy for GlowSeoul Skincare Brand
Using the GlowSeoul brand brief, the baseline web analytics readout, the starter keyword dataset, and the competitor snapshot (all provided), design an SEO strategy that raises …
- SEO
- Keyword Research
- Content Strategy
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- StrategyBeginnerNew
Rescue QuickBite's Slipping Users with Mobile Marketing
Your analysis task is to build a mobile marketing retention plan for QuickBite using only the three materials you are given: the case file documenting the company's retention si…
- Mobile Marketing
- User Segmentation
- Push Notifications
Open coursework - StrategyBeginnerNew
Omnichannel Roadmap for a Barcelona Cosmetics Brand
Working only from the materials provided, produce a twelve-month omnichannel transformation roadmap for Glow Barcelona. Read the company dossier (glow-barcelona-dossier) to esta…
- Digital Transformation
- Omnichannel Strategy
- Change Management
Open coursework - AnalysisBeginnerNew
Design a Churn-Prediction and Retention Model for TaskFlow
Using the TaskFlow customer dataset and the VP's framing memo (both provided), design and document a churn-prediction model. Perform exploratory analysis to surface patterns and…
- Logistic Regression
- Classification
- Feature Engineering
Open coursework - StrategyBeginnerNew
Design an Inclusive Engineering Hiring Plan for a Boston SaaS Scale-Up
Using the twelve-month applicant funnel dataset and the current-process case file provided, audit where DataFlow's engineering pipeline loses underrepresented candidates and why…
- Diversity And Inclusion Strategy
- Recruitment Audit
- Bias Mitigation
Open coursework - Browse challenges
Explore role
Strategy Analyst
Frame the business question, model the options, build the recommendation. From market sizing to competitive analysis, this role is where strategy consulting meets in-house decision-making.
- StrategyBeginnerNew
Migrate Glow Naturals to Dynamics 365 Business Central
Your analysis task is to turn the documented situation in the 'Glow Naturals current-state file' (CASE-001) into a defensible migration blueprint, using the legacy data sample i…
- Microsoft Dynamics 365
- Business Process Mapping
- Data Migration
Open coursework - DesignBeginnerNew
SAP HCM Implementation for a 40-Person SaaS Scale-Up
Your challenge is to configure SAP SuccessFactors Employee Central for Cloudlytics. You will define organizational structure, position management, and employee master data. Then…
- SAP Successfactors
- Hcm
- Business Process Design
Open coursework - AnalysisBeginnerNew
ESG Reporting for a Chicago D2C Cosmetics Startup
Your task is to develop a 3-page ESG reporting framework for Glow Naturals, including materiality assessment, KPIs (e.g., carbon footprint, water usage, waste reduction), and a …
- ESG Reporting
- IFRS Standards
- Financial Analysis
Open coursework - AnalysisBeginnerNew
Revenue Recognition for a SaaS Scale-Up
Your task is to produce a revenue recognition memo for the CloudSync contract. You must apply the ASC 606 five-step model, identify distinct performance obligations (software li…
- Revenue Recognition
- ASC 606
- Contract Analysis
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Why Ewance
- 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 - AnalysisBeginnerNew
Hedging Currency Risk for a German Exporter
You are a junior financial analyst at Mittelstand GmbH. The company has a firm order of €10 million from a US client, payable in USD in 6 months, and a £5 million order from a U…
- Currency Hedging
- Derivatives Pricing
- Risk Management
Financial Markets and Institutions - AnalysisBeginnerNew
Valuation of a Vienna D2C Cosmetics Startup
You are a junior financial analyst at a boutique valuation firm. GlowVienna has provided you with historical financial data (revenue, expenses, customer counts) for the past thr…
- DCF Modeling
- Comparable Company Analysis
- Excel Modeling
Open coursework - AnalysisBeginnerNew
Digital Banking App Feature Prioritization
You are part of the product team. Analyze the neobank's user transaction data (anonymized CSV provided), conduct a competitive analysis of similar features at eToro, Lemonade, a…
- Product Analysis
- Data Analysis
- Competitive Analysis
Fintech and Digital Finance - AnalysisBeginnerNew
Valuing a Toronto D2C Cosmetics Scale-Up
Your task is to build a financial model projecting GlowUp's cash flows for 5 years, estimate terminal value, and derive an equity value per share. You must also select a peer gr…
- Financial Modeling
- DCF Valuation
- Comparable Company Analysis
Open coursework - AnalysisBeginnerNew
Multiples Valuation for a SaaS Scale-Up Going Enterprise
Your team must select a peer group of 8-10 public SaaS companies that started PLG and later added enterprise sales. Compute forward EV/Revenue multiples and assess CloudFlow's r…
- Comparable Company Analysis
- Revenue Multiples
- Rule Of 40
Open coursework - AnalysisBeginnerNew
Rate and Structure a Spanish Green Bond Issuance
Using the Aurelia Renovables financial statements dataset, calculate the core credit metrics over the three reported years: interest coverage, net-debt-to-EBITDA leverage, funds…
- Credit Analysis
- Financial Statement Analysis
- Bond Covenants
Open coursework - AnalysisBeginnerNew
Demand Forecasting for a New York D2C Cosmetics Brand
You are a forecasting analyst at Glow NYC. Using provided monthly sales data (units sold) for 10 SKUs, develop a time series forecast for the next 3 months. Compare at least two…
- Time Series Analysis
- Forecasting
- Data Visualization
Open coursework - CodeBeginnerNew
Demand Sensing for a 40-Person SaaS Scale-Up
You are a growth analyst at FlowMetrics. Using weekly data on signups, trial conversions, website traffic, and marketing spend, develop a model to forecast monthly subscription …
- Time Series Forecasting
- Regression Analysis
- Python
Forecasting for Decision Making - AnalysisBeginnerNew
Assessing Political Risk for a Spanish Solar Firm in Indonesia
Students must produce a political risk report for SolMadrid's board, including a country risk score (0-100) using a custom weighted index, a qualitative assessment of key risk f…
- Political Risk Analysis
- Country Risk Assessment
- Geopolitical Frameworks
Geopolitics for Business - AnalysisBeginnerNew
Brand Alliance Strategy for a Sustainable Fashion Startup
You are a brand strategy analyst for EcoThreads. Your task is to recommend a brand alliance partner and propose a co-branding campaign. Constraints: budget of €200k for the camp…
- Brand Alliances
- Co Branding
- Brand Equity Measurement
Open coursework - AnalysisBeginnerNew
Design a Currency Hedging Policy for GlowAustin's EU and Japan Revenue
You are a junior financial analyst at GlowAustin, and the CFO has asked you to prepare a hedging proposal for the next fiscal year. Working from the provided two-year revenue-an…
- Fx Risk Management
- Financial Analysis
- Derivatives
Open coursework
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