Chapter 9.4, Problem 9BSC

In Exercises 5–16, test the given claim.

9. Coke and Diet Coke Data Set 26 “Cola Weights and Volumes” in Appendix B includes the weights (in pounds) of cola for a sample of cans of regular Coke (n = 36, $\bar{x}$ = 0.81682 lb, s = 0.00751 lb) and the weights of cola for a sample of cans of Diet Coke (n = 36, $\bar{x}$ = 0.78479 lb, s = 0.00439 lb). Use a 0.05 significance level to test the claim that variation is the same for both types of Coke.