Question

Hello, please help me understand what to look for so that I use the right method on the TI 83 and the steps for TI 83.

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critic value/2. (b) find the critical value Zu/2. or (c) state that neither the normal distribution nor the t distribution applies 40- 30 The confidence level is 99%, σ is not known, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. 8 20 10 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 a/21.51 Round to two decimal places as needed.) Ζα / 2:11.51 Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.

Answer 1

From the histogram, we know that the given data do not follow a normal distribution. Hence, we can't use the z or t distributions for the confidence interval of the mean.

Correct answer is

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