Here are summary statistics for randomly selected weights of newborn girls: n = 214, x = 31.7 hg, s= 7.8 hg. Construct a confidence interval estimate of the mean. Use a 90% confidence level. Are these...

Extracted text: Here are summary statistics for randomly selected weights of newborn girls: n = 214, x = 31.7 hg, s= 7.8 hg. Construct a confidence interval estimate of the mean. Use a 90% confidence level. Are these results very different from the confidence interval 30.2 hg <>< 33.6="" hg="" with="" only="" 13="" sample="" values,="" x="31.9" hg,="" and="" s="3.5" hg?="" what="" is="" the="" confidence="" interval="" for="" the="" population="" mean="" µ?="" hg=""><>< hg="" (round="" to="" one="" decimal="" place="" as="">