Question 16 4 pts Do one of the following, as appropriate: (a) Find the critical value za/2, (b) find the critical value to 12, (c) state that neither the normal nor the t distribution applies. 98%; n = 7;0 = 27; population appears to be normally distributed. O ta/2 = 1.96 O ta/2 = 2.575 O Za/2 = 2.33 O Za/2 = 2.05