Mathematics, 23.09.2021 14:00, kaylaburpo

Here are summary statistics for randomly selected weights of newborn girls: n=157, x=31.5 hg, s=7.8 hg. Construct a confidence interval estimate of the mean. Use a 90% confidence level. Are these results very different from the confidence interval 30.0 hg<μ<33.2 hg with only 17 sample values, x=31.6 hg, and s=3.7 hg? What is the confidence interval for the population mean μ?
nothing hg<μ

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Here are summary statistics for randomly selected weights of newborn girls: n=157, x=31.5 hg, s=7.8...