Kavita has been assigned the task of studying the average customer receipt for a branch of a major restaurant chain. the average receipt for the chain is $72.00 with a standard deviation of $11.00. the branch she is studying has an average bill of $67.00 for the last 40 receipts. she needs to know if this falls below the chain’s average. she will use a 1% level for significance because she does not want to inadvertently report the restaurants income as below average. upper-tail values a: 5% 2.5% 1% critical z-values: 1.65 1.96 2.58 which choice depicts the result for kavita’s hypothesis test? a. she should reject h0 : µ = 72 and accept ha : µ < 72. b. she should reject h0 : µ = 72 and accept ha : µ not equal to 72. c. she should accept h0 : µ = 72 and reject ha : µ not equal to 72. d. she should reject ha : µ < 72 but cannot accept h0 : µ = 72.