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Here are summary statistics for randomly selected weights of newborngirls: n=175, x=30.6 hg, s=7.8 hg. Construct a confidence interval estimate of the mean. Use a

Here are summary statistics for randomly selected weights of newborngirls: n=175, x=30.6 hg, s=7.8 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 27.4 hg<<32.8 hg with only 12 samplevalues, x=30.1 hg, and s=3.5 hg?

What is the confidence interval for the population mean ?

hg<<

hg

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