Question
Assume that we want to construct a confidence interval. Do one of the following, as appropriate:...
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t Subscript alpha divided by 2, (b) find the critical value z Subscript alpha divided by 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: nequals290, x overbarequals31.9 hg, sequals6.1 hg. The confidence level is 90%. Please help!
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