Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value f/2. (b) find the critical value Za/2. or (c) state that neither the normal distribution nor the t distribution applies The confidence level is 99%, a is not known, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ₁/2 (Round to two decimal places as needed.) OB.za/2 (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies. 40 30- 20 10- 16 4000 8000 12000 16000 20000 Salary thousands of dollars) C C

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