Question

A manager of a car dealership believes there is a relationship between the number of salespeople on duty and the number of cars sold. Suppose the following sample is used to develop a simple regression model to predict the number of cars sold by the number of salespeople. Solve for r2 and explain what r2 means in this problem.

Week / # of cars sold / # of sales people

1 79 7

2 63 6

3 49 4

4 23 2

5 51 3

r2 = ?

If a regression model would have been developed to predict number of cars sold by the number of sales people, the model would have had an r2 of ??

(Do not round the intermediate values. Round the value of SSE to 4 decimal places. Round your answer to 3 decimal places.) (Round your answer to 1 decimal place.)

Answer 1