help

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value 40- ta/2. (b) find the critical value Zo /2, or (c) state that neither the 30- normal distribution nor the t distribution applies. Frequency 20 The confidence level is 90%, o = 3321 thousand dollars, and 10 the histogram of 53 player salaries (in thousands of dollars) of football players on a team is as shown. 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 O A. ta/2 = (Round to two decimal places as needed.) O B. Za/2 he (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies