= Test: Final... Question 14 of 21 This test: 200 point(s) possible This question: 6 point(s) possible Submit test 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 za/2, or (c) state that neither the normal distribution nor the t distribution applies Here are summary statistics for randomly selected weights of newborn girls: n = 232, x = 31.7 hg, s =6.8 hg. The confidence level is 90% 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.) O B. Za/2= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies