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Here are the summary statistics for randomly selected weights of newborn girls: n = 220, x...

Here are the summary statistics for randomly selected weights of newborn girls: n = 220, x = 29.9 hg, s = 6.4 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 29.3 hg < u < 31.7 hg with only 19 sample values, x = 30.5 hg and s = 2.1 hg?

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