Here are summary statistics for randomly selected weights of newborn girls: n=171, x = 31.9 hg, s = 6.2 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 30.7 hg < µ < 32.7 hg with only 17 sample values, x = 31.7 hg, and s = 1.9 hg?

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Here are summary statistics for randomly selected weights of newborn girls: n=171, x = 31.9 hg, s = 6.2 hg. Construct a confidence interval estimate of the mean.
Use a 95% confidence level. Are these results very different from the confidence interval 30.7 hg <u< 32.7 hg with only 17 sample values, x = 31.7 hg, and s =1.9
hg?
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: n=171, x = 31.9 hg, s = 6.2 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 30.7 hg <u< 32.7 hg with only 17 sample values, x = 31.7 hg, and s =1.9 hg?
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