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Here are summary statistics for randomly selected weights of newborn​ girls: nequals193​, x overbarequals32.2 ​hg, sequals6.4 hg....

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Statistics

Here are summary statistics for randomly selected weights ofnewborn​ girls: nequals193​, x overbarequals32.2 ​hg, sequals6.4hg. Construct a confidence interval estimate of the mean. Use a90​% confidence level. Are these results very different from theconfidence interval 31.1 hgless thanmuless than33.1 hg with only 15sample​ values, x overbarequals32.1 ​hg, and sequals2.1 ​hg?

What is the confidence interval for the population mean mμ​?

Are the results between the two confidence intervals very​different?

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Solution Given thatPoint estimate sample mean 322sample standard deviation s    See Answer
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