I need to know how to get this answer for a homework question, if you could show your work so I can use it for other problems that would be great. Thank you.

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to /2, (b) find the critical value zo/2, or (c) state that neither the normal distribution nor the t distribution applies. 2- 1.6- 1.2- The confidence level is 99%, o is not known, and the normal quantile plot of the 17 salaries (in thousands of dollars) of basketball players on a team is 0.8- as shown. z score 0.4- -0.8- -0.4- 4200 8400 12600 16800 21000 -1.2- -1.6- X Values Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ta/2= (Round to two decimal places as needed.) OB. Zx/ 2= (Round to two decimal places as needed.)