Mathematics, 19.03.2021 03:10 LayLay9289

The average annual premium for automobile insurance in the United States is $1565. A representative sample of annual premiums for the state of Michigan is contained in the Excel Online file below. Assume the population is approximately normal. Construct a spreadsheet to answer the following questions. Open spreadsheet a. Provide a point estimate of the mean annual automobile insurance premium in Michigan. $ (to the nearest dollar) b. Develop a 95% confidence interval for the mean annual automobile insurance premium in Michigan. ($ , $ ) (to the nearest cent) c. Does the 95% confidence interval for the annual automobile insurance premium in Michigan include the national average for the United States

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The average annual premium for automobile insurance in the United States is $1565. A representative...