Mathematics, 06.08.2019 21:30 rachel63892

In order to estimate the mean 30-year fixed mortgage rate for a home loan in the united states, a random sample of 28 recent loans is taken. the average calculated from this sample is 5.25%. it can be assumed that 30-year fixed mortgage rates are normally distributed with a standard deviation of 0.50%. compute 90% and 99% confidence intervals for the population mean 30-year fixed mortgage rate.

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In order to estimate the mean 30-year fixed mortgage rate for a home loan in the united states, a ra...