Here are summary statistics for randomly selected weights ofnewborn​ girls:
nequals=187187​,
x overbarxequals=32.132.1
​hg,
sequals=7.37.3
hg. Construct a confidence interval estimate of the mean. Usea
9090​%
confidence level. Are these results very different from theconfidence interval
31.431.4
hgless thanhg with only
2020
sample​ values,
x overbarxequals=32.532.5
​hg, and
sequals=2.82.8
​hg?
What is the confidence interval for the population mean
muμ​?
nothing
hgless thanhg ​(Round to one decimal place as​ needed.)
