A local fitness center is studying the cost of weekly meal-p…

A local fitness center is studying the cost of weekly meal-prep services used by its members. To estimate the average weekly expense, they survey 6 members who report the following amounts spent (in dollars): 42, 44, 47, 49, 53, 55 a). Construct a 90% confidence interval for the weekly mean amount of child care. b) Interpret the confidence interval. c). Do we need to make any additional assumptions to make sure the confidence interval from a) is valid? d) Think about the interpretation of the confidence interval. What does it mean to be “90% confident”?