Unformatted text preview: The mean of the sample results were 18, so it is a little bit of if the true mean of water usage is actually 22. This could be that the numbers collected had an extremely small outlier. This could also mean that the sample results are statistically insignificant because they do not completely represent the true mean as claimed by Maureen....
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 Spring '08
 McGowan
 Statistics, true mean, Nancy Ng Huang

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