A bottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. The w Sottling company's specifications state that the standard deviation of the amount of water is equal to 0.04 gallon. A random sample of 50 bottles is selected, and sample mean amount of water per 1-gallon bottle is 0.995 gallon. Complete parts (a) through (d). a. Construct a 99% confidence interval estimate for the population mean amount of water included in a 1-gallon bottle. (Round to five decimal places as needed.)