Assume that we want to construct a confidence interval. Do one of the following, as appropriate:

Find the critical value t_/2

Find the critical value z_/2

State that neither the normal distribution nor the t distribution applies.

The confidence level is 99%, is not known, and the histogram of 63 player salaries (in thousands of dollars) of football players

A.t_/2= 2.66

B.z_/2= 2.00

C.Neither the normal distribution nor the t distribution applies.

D.t_/2= 1.67