SCENARIO 13-10 the Management of a Chain Electronic Store Would Like to Like

Short Answer

SCENARIO 13-10
The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousands of dollars)for individual stores based on the number of customers who made purchases.A random sample of 12 stores yields the following results:

-Referring to Scenario 13-10,what are the degrees of freedom of the F test statistic when testing whether the number of customers who make purchases is a good predictor for weekly sales?