7.2.6-T Question Help 40 30- Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to/2, (b) find the critical value Za/2, or (c) state that neither the normal distribution nor the t distribution applies. Frequency 20- 10- 0 0 4000 8000 12000 16000 20000 Salary (thousands of dollars) The confidence level is 99%, o is not known, and the histogram of 60 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. O A. to 12 = 0 (Round to two decimal places as needed.) B. Zal2= (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.​