Challenge your Data Analytics skills!
How it works:
Each fortnight we will present a data challenge to be solved. These challenges will be a mix of Excel, Power BI, Tableau and SQL and are designed to increase your proficiency in skills across the data pathway. We encourage everyone on the Data Pathway to take a crack and challenge yourself!
The winners will be announced on the SitRep, fortnightly on Fridays at 4 pm AEST.
The stream can be found here: https://www.twitch.tv/withyouwithstream
and winners will receive a badge to proudly display on the WYMW Data Discord!
Challenge #2 – Maccas
|You are working with a team of Data Analysts currently doing a health survey of fast-food chains in the USA. You have been given Maccas (McDonalds) to analyse. |
Your task is to determine the correlation between various metrics such as protein, sugar, fat etc – and effectively plot the relationship.
|Using Excel, Power BI or Tableau, complete the following:|
1. Create a Correlation Plot to answer the following questions:
Q1 – Correlation visualisation of Calories, Calories from fat, Carbs, Cholesterol, Dietary fibre, Protein, Saturated fat, Sodium, Sugars, Total fat and trans fat
Q2 – Identify the correlation between sugars and carbs – Is it correlated? If so, is it positively or negatively, strong or weak correlation?
Q3 – Create a slicer showing the Correl between Protein and total fat within the Beef and Pork Category
Q4 – Using the slicer show the Correl between calories and carbs within the breakfast menu category
Q5 – Using the slicer find the ratio of protein to sugars between within the Iced mocha menu item
Q6 – Create a dashboard with a Card, slicer and visualization demonstrating the correlation between 2 different measurements within 2 different menu categories
2. Create a Scatterplot to answer the following questions:
Q1 – Create a scatter plot identifying protein and total fat adding a trend line, is there a correlation?
Q2 – What is the median of the data presented and what is the average of the data presented?
Q3- Add 95 percentile lines on the scatter plot, which items are within this range?
Q4 – Which item is within the 99th percentile range?
Q5 – Create a dashboard with visualisation of scatter plot, correlation card and slicer (for menu category and item category)
Lastly, to practice your skills, you can complete the following questions:
(note these last questions will not be assessed for the challenge, but are good practice!)
Q1- AVG total calories of each ‘category’ menu item — (which has the highest avg)
Q2 – AVG total calories of Fat in each ‘Category’ menu item –(which has the highest avg)
Q3 – Total fat in one Specific Menu category — (specific which menu item this is)
Q4 – Percentage difference between highest total fat in breakfast item compared to lowest total fat in breakfast item)
Q5 – Count of each ‘category’ of breakfast item — ( which item has the highest count of menu items/ which has the lowest)
Submit your answers
Submissions close 04/12/2020 at 12:00pm AEST.
Submit your answers directly to Jimmy via Discord.
If you’re having any difficulty, jump into our Data Analyst Discord Server and join the discussion!
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