Exercise Mortgage rates: Following are interest rates (annual percentage rates) for a 30-year fixed rate mortgage from a sample of lenders in Macon, Georgia for one day. It is reasonable to assume that the population is approximately normal. 4.752 4.375 4.173 4.675 4.421 4.229 4.128 4.250 3.954 4.295 4.411 Send data to Excel Part: 0 / 2 Part 1 of 2 (a) Construct a 99% confidence interval for the mean rate. Round the answer to at least four decimal places. A 99% confidence interval for the mean rate is

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Mortgage rates: Following are interest rates (annual percentage rates) for a 30-year fixed rate mortgage from a sample of
lenders in Macon, Georgia for one day. It is reasonable to assume that the population is approximately normal.
4.752 4.375 4.173 4.675 4.421 4.229
4.128 4.250 3.954 4.295 4.411
Send data to Excel
Part: 0/ 2
Part 1 of 2
(a) Construct a 99% confidence interval for the mean rate. Round the answer to at least four decimal places.
A 99% confidence interval for the mean rate is
Transcribed Image Text:Mortgage rates: Following are interest rates (annual percentage rates) for a 30-year fixed rate mortgage from a sample of lenders in Macon, Georgia for one day. It is reasonable to assume that the population is approximately normal. 4.752 4.375 4.173 4.675 4.421 4.229 4.128 4.250 3.954 4.295 4.411 Send data to Excel Part: 0/ 2 Part 1 of 2 (a) Construct a 99% confidence interval for the mean rate. Round the answer to at least four decimal places. A 99% confidence interval for the mean rate is
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