A bottled water distributor wants to estimate the amount of water contained in 1-gallon bottles...
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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 water bottling companys specifications state that the standard deviation of the amount of water contained in their 1-gallon bottles is equal to 0.02 gallon. A random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon. Assuming that the amount of water contained in 1-gallon bottles is approximately normally distributed, construct a 99% confidence interval estimate for the population mean amount of water in a 1-gallon bottle.
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