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Construct a confidence interval

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Assume that we want to construct a confidence interval. Do one of the? following, as? appropriate: (a) find the critical value tα/2?, ?(b) find the critical value zα/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=290?, x=28.8 ?hg, s=7.8 hg. The confidence level is 95?%.

Reference no: EM132849274

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