Confidence level is 99%, s = 3342 thousand dollars, and the histogram of 61 player salaries (thousands of dollars) is shown in Exercise 6.

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,

(c) state that neither the normal distribution nor the t distribution applies.

Exercise 6

Confidence level is 90%, s is not known, and the histogram of 61 player salaries (thousands of dollars) is as shown.

30- 20 4000 8000 12000 16000 20000 Salary (thousands of dollars) Frequency