Question

A bottled water distributor wants to determine whether the mean amount of wwater contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. you know from the water bottling company specifications that the standard deviation of the amount of water is 0.03 gallon. You select a random sample of 45 bottles, and the mean amount of water per 1-gallon bottle is 0.997 gallon.

a) What is/are the critical value(s) (use alpha= 0.01) ( round to two decimal places)

b) Compute the p-value and interpret its meaning. What is the p-value?

c) Construct a 95% confidence interval estimate of the population mean amount of water per 1-gallon bottle.

Answer 1