A corporation that maintains a large fleet of company cars for the use of its sales staff is interested in the mean distance driven monthly per sales person. The following table gives the monthly distances in miles driven by a random sample of 15 sales persons: 2560, 2506, 2437, 2476, 2128, 2537, 2023, 2664, 2555, 2552, 2626, 1900, 2691, 1907, 2542 Based on this sample, find a 90% confidence interval for the mean number of miles driven monthly by members of the sales staff, assuming that monthly driving distances are normally distributed. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) What is the lower limit of the confidence Aa interval? What is the upper limit of the confidence interval?
A corporation that maintains a large fleet of company cars for the use of its sales staff is interested in the mean distance driven monthly per sales person. The following table gives the monthly distances in miles driven by a random sample of 15 sales persons: 2560, 2506, 2437, 2476, 2128, 2537, 2023, 2664, 2555, 2552, 2626, 1900, 2691, 1907, 2542 Based on this sample, find a 90% confidence interval for the mean number of miles driven monthly by members of the sales staff, assuming that monthly driving distances are normally distributed. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) What is the lower limit of the confidence Aa interval? What is the upper limit of the confidence interval?
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Author:Amos Gilat
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![A corporation that maintains a large fleet of company cars for the use of its sales staff is interested in the
mean distance driven monthly per sales person. The following table gives the monthly distances in miles
driven by a random sample of 15 sales persons:
2560, 2506, 2437, 2476, 2128, 2537, 2023, 2664, 2555, 2552, 2626, 1900, 2691, 1907, 2542
Based on this sample, find a 90% confidence interval for the mean number of miles driven monthly by
members of the sales staff, assuming that monthly driving distances are normally distributed. Then complete
the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal
place. (If necessary, consult a list of formulas.)
What is the lower limit of the confidence
Aa
interval?
What is the upper limit of the confidence
interval?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe8475079-8920-4be2-a58d-6ceccbaaf385%2Fc378261d-843e-47d4-b96d-0962a2ced1fa%2Fjwx52d.jpeg&w=3840&q=75)
Transcribed Image Text:A corporation that maintains a large fleet of company cars for the use of its sales staff is interested in the
mean distance driven monthly per sales person. The following table gives the monthly distances in miles
driven by a random sample of 15 sales persons:
2560, 2506, 2437, 2476, 2128, 2537, 2023, 2664, 2555, 2552, 2626, 1900, 2691, 1907, 2542
Based on this sample, find a 90% confidence interval for the mean number of miles driven monthly by
members of the sales staff, assuming that monthly driving distances are normally distributed. Then complete
the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal
place. (If necessary, consult a list of formulas.)
What is the lower limit of the confidence
Aa
interval?
What is the upper limit of the confidence
interval?
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