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Here are summary statistics for randomly selected weights of newborngirls: n=249, x=29.3 hg, s=6.1 hg. Construct a confidence interval estimate of the mean. Use a

Here are summary statistics for randomly selected weights of newborngirls: n=249, x=29.3 hg, s=6.1 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these results very different from the confidence interval 27.5 hg<<30.3 hg with only 13 samplevalues, x=28.9 hg, and s=1.7 hg?

What is the confidence interval for the population mean ?

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