Practice questions

Let’s try to practice the material in this chapter with a few example questions.

Questions

1. Simon’s Grocery Store collects data on the number of sales of every vegetable it sells every day. If you wanted to see whether there is a statistically significant difference between the number of sales of pumpkins and the number of sales of summer squash, which analysis would be most appropriate?
   1. T-test
   2. Chi-square
   3. Correlation
   4. Simple linear regression
2. Now, Simon’s Grocery Store groups cereal brands into Great Sellers and Poor Sellers based on sales performance in the past. It also notes the color of the box for each brand. The grocery store would like to know whether there is a relationship between the color of the box and whether the brand is a great seller or a poor seller. Which analysis would be most appropriate?
   1. T-test
   2. Chi-square
   3. Correlation
   4. Simple linear regression
3. Simon’s Grocery Store collects data on every product it sells. Now...