Amazon Prime is a $1 'I 9-per-year service that gives the company's customers certain perks including free two-day shipping and discounted delivery rates. The dataset shows a portion of the annual expenditures (in $) for 100 Prime customers. a) Construct the 95% confidence interval for the average annual expenditure of all Prime customers. b) Using a significance level of 0.05, can you reject the claim that the average annual experitures for all Prime customers is at least $1350?