Here are summary statistics for randomly selected weights of newborn girls: n = 160, x = 28.4 hg, s= 6.7 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these...

Extracted text: Here are summary statistics for randomly selected weights of newborn girls: n = 160, x = 28.4 hg, s= 6.7 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 27.4 hg <>< 29.6="" hg="" with="" only="" 19="" sample="" values,="" x="28.5" hg,="" and="" s="2.2" hg?="" what="" is="" the="" confidence="" interval="" for="" the="" population="" mean="" µ?="" hg=""><>< hg="" (round="" to="" one="" decimal="" place="" as="">