Below is a Data Analysis project outline designed to introduce beginner-level concepts in data manipulation (using SQL, Pandas, or Excel) and data visualization (using Tableau or Power BI). It also includes optional, more advanced requirements for those who want to challenge themselves further. The scenario involves performing a market analysis of publicly available grocery data in the context of recent inflation trends and using verified sales data to provide strategic recommendations to an executive committee at a major grocery chain.
You are a Data Analyst working for Galaxy Grocers, a major grocery chain. Executive leadership has requested a market analysis that examines:
- Publicly available grocery market data,
- Recent inflation trends, and
- Verified sales data (e.g., your chain’s sales data or aggregated industry sales data).
You’ll perform data manipulation and visualization to:
- Identify key product lines to promote,
- Pinpoint areas of the business likely to become less profitable over time, and
- Highlight high margin areas of the business to expand.
You’ll then compile actionable recommendations for an executive committee.
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Practice Data Manipulation:
- Use SQL, Pandas, or Excel to clean, transform, and merge datasets.
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Create Data Visualizations:
- Build charts/dashboards in Tableau or Power BI.
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Analyze Market & Economic Trends:
- Incorporate inflation data to assess how rising costs may impact sales and profits.
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Provide Executive-Level Recommendations:
- Summarize findings with clear business insights and strategic direction.
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(Optional Advanced):
- Perform advanced analytics to forecast future market or sales trends.
To keep this beginner-friendly, select or simulate data sets that are either small or medium in size. If you want to make it more advanced, you can expand the variety and volume of data.
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Grocery Market Data
- Could be from publicly available datasets like USDA or other government sites that track commodity prices and market information.
- Example columns might include: Product Category, Time Period, Average Price, Demand Index.
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Inflation Trend Data
- Could be from government or third-party economic data (e.g., CPI data from the U.S. Bureau of Labor Statistics).
- Example columns might include: Date, CPI (Consumer Price Index), Inflation Rate.
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Verified Grocery Sales Data
- Real or simulated sales data for Galaxy Grocers or from publicly available retail data.
- Example columns might include: Transaction Date, Product Name, Quantity Sold, Revenue, Profit Margin, Store Location.
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(Optional Advanced):
- Demographic or Regional Data (population density, household income, etc.) to deepen insights.
- Additional historical data going back multiple years for time-series analysis.
- Acquire the data: Download or gather the grocery market data, inflation trend data, and sales data.
- Store the data in a location accessible to your chosen toolset:
- If using SQL, import to a relational database (e.g., MySQL, PostgreSQL, or a local sqlite database).
- If using Pandas, store as .csv files in a folder, then load them into dataframes.
- If using Excel, keep them in separate worksheets or separate .xlsx files.
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Check for missing values and outliers:
- In SQL, use queries to find rows with NULL values or extreme outliers.
- In Pandas, use functions like
df.isnull().sum()
,df.describe()
, etc. - In Excel, apply filters and conditional formatting to spot anomalies.
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Clean or remove problematic data points where appropriate. Keep a record of the decisions you make here so you can include relevant details in your final executive report.
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Merge or join datasets where necessary:
- E.g., combine the inflation data with time-series grocery data on matching Date/Month/Year fields.
- Combine sales data with product categories or average price data using product IDs or product names.
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Create any needed calculated fields:
- For example, an inflation-adjusted cost or inflation-adjusted revenue column, or a profit margin calculation if it’s not already provided.
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Generate summary statistics:
- Means, medians, standard deviations, min/max, etc.
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Look at distributions:
- For continuous variables like price, inflation rates, or sales volume.
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Perform grouping and aggregations:
- Total sales or revenue by Product Category, Store Location, Month.
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Begin forming hypotheses about which product categories might be most (or least) affected by inflation or demand changes.
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Choose a visualization tool:
- Tableau or Power BI for drag-and-drop dashboard creation.
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Recommended Visuals:
- Trend Line:
- Plot how grocery prices and sales volumes have changed over time versus inflation rates.
- Bar/Column Charts:
- Compare revenue or profit across product categories or store locations.
- Heatmaps/Maps (if using location data):
- Show regional differences in demand or sales.
- Scatter Plots:
- Show correlation between product prices and inflation index.
- Trend Line:
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Dashboard Creation:
- Include a summary page showing key metrics: total sales, average profit margins, inflation trend overlays, etc.
- Provide interactive filters (e.g., by region, product category, or time period) if using Tableau.
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Identify Key Products to Promote:
- Look for categories with stable or rising demand and good profit margins.
- Evaluate how inflation affects these categories; if costs are still manageable, promotion may be profitable.
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Spot Areas Becoming Less Profitable:
- Look for product lines where costs are rising faster than revenues, or margins are shrinking.
- Identify items with low demand that may not be worth stocking in the long run.
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Highlight High-Margin Growth Areas:
- Identify categories with consistently high margins that also show consumer demand resiliency.
- Recommend strategies to expand product lines or marketing in these areas.
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Draft an Executive Summary:
- Provide bullet points or an executive-level slide deck with data-driven conclusions.
- Align recommendations with financial goals and brand strategy.
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(Optional Advanced):
- Scenario Planning:
- Model best/worst-case inflation scenarios and the impact on product-level profitability.
- Scenario Planning:
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Data Files (Cleaned & Merged):
- Final versions stored in SQL tables, Pandas dataframes, or Excel sheets.
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Exploratory Analysis:
- Write up or notebook (Jupyter Notebook if using Python) showcasing the key descriptive statistics, transformations, and charts.
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Visualization Dashboards or Charts:
- Tableau or Power BI dashboard (with interactive elements).
- Showcase trends, comparisons by category/location, and inflation-adjusted insights.
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Executive Summary (Presentation or Report):
- Summarize main insights with visuals and bullet-point findings.
- Clearly state product recommendations, potential problem areas, and strategic expansion opportunities.
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Geo-Spatial Analysis:
- If store location data is available, overlay on a map (in Tableau) to highlight regional discrepancies in sales or profitability.
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Advanced Statistical Methods:
- Correlation or causation tests to definitively link inflation spikes to certain product declines or changes in consumer behavior.
By completing this project, you’ll:
- Practice data cleaning & preparation in SQL, Excel, or Pandas.
- Build interactive visualizations in Tableau or Power BI.
- Interpret economic data (inflation) in the context of retail sales.
- Develop strategic recommendations for a large business based on data insights.
- (Optionally) Hone advanced analytics skills with scenario planning or more sophisticated dashboards.
This project guides you through the key steps of end-to-end data analysis—collecting and cleaning data, exploring and visualizing patterns, and translating your findings into real-world business recommendations. By adjusting the scope (datasets used, complexity of analysis), you can keep it beginner-friendly or turn it into a robust, advanced data project.