Memorandum 2 - The mean of the sample results were 18, so...

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Memorandum To: Mayor of Newton From: Nancy Ng Huang, “Doant, Kare, No, How” consultant Subject: How Much Water BC currently use A. Yes, because the sample size is smaller than 30 and we can also find the mean of the data, B. The 99% confidence level is bigger than 14.4199 and smaller than 22.4068. C. If the true mean of water usage is 22, then we can conclude that the sample results are slightly undependable.
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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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