Question Help 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...

Extracted text: Question Help 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 thet distribution applies 30- The confidence level is 90%, 6- 3952 thousand dollars, and the histogramn of 57 plaver salaries (in thousands of dollars) of football players on a team is as shown. 20- 10- 4000 a000 12000 16000 20o000 Salary (ihousanas of doilars Select the corect choice below and, if necessary, fill in the answer box to complete your choice OA 12 (Round to two decimal places as needed) a12 (Round to twio decimal places as needed) OC Neither the normal distribution nor the t distribution applies CICK to select and enter your answeris) and then ciick Check Answer All parts