Assume that we want to construct a condence interval. Do one of the following, as appropriate: (a) nd the critical value tum, (b) nd the critical value zmz, 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 = 202, )2: 30.2 hg, s = 6.8 hg. The condence level is 95%. Select the correct choice below and. if necessary, ll in the answer box to complete your choice. O A' 1all: (Round to two decimal places as needed.) OB. za/z = (Round to two decimal places as needed.) O (2. Neither the normal distribution nor the t distribution applies