Here are summary statistics for randomly selected weights of newborn​ girls: nequals=213213​, x overbarxequals=32.232.2 ​hg, sequals=6.56.5 hg. Construct a confidence interval estimate of the mean. Use a 9595​% confidence level. Are these results very different from the confidence interval 31.131.1 hgless than<muμless than<33.133.1 hg with only 1818 sample​ values, x overbarxequals=32.132.1 ​hg, and sequals=2.12.1 ​hg? What is the confidence interval for the population mean muμ​?

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