Homework: ... Question 61, 7.2.8-T HW Score: 41.48%, 54.33 of 131 points Save O Points: 0 of 1 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 = 237, x = 31.5 hg, s=6.4 hg. The confidence level is 99% Select the correct choice below and, if necessary, fill in the answer box to complete your choice O'A: tal2 = (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