Assume you are a marketing analyst working for a manufacturer of ready-to-eat cereal. You are given detailed sales data for the past year and asked to create a report showing the differences between the four sales regions (north, south, east, and west) in terms of sales volume, profitability, and changes in sales volume and profitability; marketing expenditures and changes in marketing expenditures; and per capita sales and marketing expenditures.
Evaluate which of the four types of data (nominal, ordinal, interval, and ratio) is the sales data you are working on.
Compare specific statistical techniques and charts you could use to depict differences, specifically addressing each of the categories constituting your report. Determine which techniques and charts you would use. Then explain why you believe that the techniques and charts you have chosen would be appropriate. Support your discussion with relevant examples, research, and rationale.