D Question 11 10 pts The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card, You are given the following information. Store's Card Major Credit Card Sample size 64 49 Sample mean $140 $125 Population standard deviation $10 $8 A 95% confidence interval estimate for the difference between the average purchases of all customers using the two different credit cards is O 11.68 to 18.32. O 13.31 to 16.69. 13.04 to 16.96. O 12.22 to 17.78.Question 12 10 pts The critical F value with 6 numerator and 60 denominator degrees of freedom at or = 05 is O 2.37. O 2.25. O 3.74. O 1.96. 10 pts