number 24

Here are summary statistics for randomly selected weights of newborngirls: n=167, x=29.8 hg, s=7.6 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these results very different from the confidence interval 26.7 hg<<32.7 hg with only 12 samplevalues, x=29.7 hg, and s=3.4 hg?

What is the confidence interval for the population mean ?

-------- hg<< ------ hg (Round to one decimal place asneeded.)