Do one of the following, as appropriate. (a) Find the critical value z/2: (b) find the critical value t/2, (c) state that neither the normal nor the t distribution applies. Confidence level 95%; n=...

Extracted text: Do one of the following, as appropriate. (a) Find the critical value z/2: (b) find the critical value t/2, (c) state that neither the normal nor the t distribution applies. Confidence level 95%; n= 28; o is known; population appears to be very skewed. Click here to view a table of critical t-values. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. Find the critical value. O A. Za/2 = 1.645 O B. tu/2 = 1.703 Oc. ta/2 = 2.052 O D. Z/2 = 1.96 O E. Neither normal nor t distribution applies.