Using the simple random sample of weights of women from a data?set, we obtain these sample? statistics:
nequals=4040
and
x overbarxequals=147.53
lb. Research from other sources suggests that the population ofweights of women has a standard deviation given by
sigma?equals=32.57
lb.
a. Find the best point estimate of the mean weight of allwomen.
b. Find a 95% confidence interval estimate of the mean weight ofall women.
