A school district wants to estimate the mean number of snow days that they can expect each

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A school district wants to estimate the mean number of snow days that they can expect each year. A sample of the number of snow days taken over the last 10 years is given in Table 4.11.

a. Find and interpret a $98 \%$ confidence interval for the mean number of snow days.

b. Estimate if the mean number of snow days per year is less than $3(\alpha=0.01)$.

c. How big of a sample would be needed to detect the mean number of snow days to be no more than 2 ?

Table 4.11

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Applied Statistical Inference With MINITAB

ISBN: 9780367780579

2nd Edition

Authors: Sally A. Lesik

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Question Posted: Mar 15, 2024 03:00 AM

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A school district wants to estimate the mean number of snow days that they can expect each

Question:

Random Sample of the Number of Snow Days Taken Over the Past 10 Years 2 1 0 0 3 1 2 0 5

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Applied Statistical Inference With MINITAB

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