Question
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company
A bottled water distributor wants to determine whether the mean amount of water 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 0.02 gallon. You select a random sample of 50 bottles, and the mean amount of water per 1-gallon bottle is 0.993 gallon.
a. Is there evidence that the mean amount is different from 1.0 gallon? (Use =0.01.)
Let be the population mean. Determine the null hypothesis, H0, and the alternative hypothesis, H1.
H0: = 1-correct
H1: 1-correct
Part 2
What is the test statistic?
ZSTAT=enter your response here
(Round to two decimal places as needed.)
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