Here are summary statistics for randomly selected weights of newborn girls: n= 232, *= 32.2 hg, s=7.4 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these results very different from the confidence interval 29.3 hg < u < 33.9 hg with only 17 sample values, *= 31.6 hg, and s= 3.2 hg?

MATLAB: An Introduction with Applications
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Here are summary statistics for randomly selected weights of newborn girls: n= 232, *= 32.2 hg, s=7.4 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these results very different from the confidence interval 29.3 hg < u < 33.9 hg with only 17 sample values, *= 31.6 hg, and s= 3.2 hg?
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