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Construct a confidence interval estimate of the mean

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Reference no: EM132848520

Here are summary statistics for randomly selected weights of newborn? girls: n=237?, x=30.7 ?hg, s=7.7 hg. Construct a confidence interval estimate of the mean. Use a 90?% confidence level. Are these results very different from the confidence interval 29.5 hg<μ<32.3 hg with only 20 sample? values, x=30.9 ?hg, and s=3.5 ?hg?

Reference no: EM132848520

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