steps to the solution

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t /2, (b) find the critical value Z,(2, or (c) state that neither the normal distribution nor the t distribution applies. 30- Frequency The confidence level is 95%, o is not known, and the histogram of 64 player salaries (in 20- thousands of dollars) of football players on a team is as shown, 0- -O 4000 8000 12000 16000 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. 1 12= (Round to two decimal places as needed.) OB. Z 1/2= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies