The Manager of a Grocery Store Wants Is Interested in the Average

Multiple Choice

The manager of a grocery store wants is interested in the average amount of water contained in a "1L" bottle purchased from a known manufacturer.It is known from the manufacturer's specifications that the amount of water is normally distributed with a standard deviation of 0.02L.A random sample of 32 bottles is selected,and the mean amount of water per 1L bottle is found to be 0.995L.The 99.9% confidence interval for the mean water content is _____.

A) [0.987,1.003]
B) [0.986,1.004]
C) [0.984,1.006]
D) [0.983,1.007]
E) [0.988,1.002]