you work for a consumer advocate agency and your manager thinks the mean repair cost of a washing machine has increased since last measured due to skilled labor shortage. it is a common belief that the average repair cost is $100.00. Assume the standard deviation of the cost of repairs for washing machines is$24.50. you randomly select 40 repairs and find the mean to be 108.00. perform a hypothesis test to determine if your manager is correct the mean repair cost has increasedUSE =1

A, State the null and alternative Hypothesis

B, state any necessary assumptions

C, compute the test statist

D, Determine the P-value and compare to the level of significance to make a decision

E, state your conclusion in terms of the specific data set used