Please help! Show steps, too. Interest rates and mortgages again. In.pdf

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A regression model is appropriate for predicting mortgage amounts from interest rates based on data from the past 26 years, which found a strong negative correlation of -0.84 between the two variables. The regression equation to predict mortgage amounts from interest rates is: Mortgage Amount = 151.9 million - 23.86 million * Interest Rate. Using this equation, if interest rates climbed to 20%, mortgage amounts would be predicted to be around $107 million. However, this prediction should be viewed cautiously since 20% is beyond the range of interest rates in the original data.

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Please help! Show steps, too. Interest rates and mortgages again. In Chapter 7, Exercise 32, we
saw a plot of total mortgages in the United States (in millions of 2006 dollars) versus tte interest
rate at various times over the past 26 years. The correlation is r = -0.84. The mean mortgage
amount is $151.9 million and the mean interest rate is 8.88%. The standard deviations are $23.86
million for mortgage amounts and 2.58% for the interest rates. Is a regression model appropriate
for predicting mortgage amount from interest rates? Explain. What is the equation that predicts
mortgage amount from interest rates? What would you predict the mortgage amount would be if
the interest rates climbed to 20%? Do you have any reservations about your prediction in part c?
If we standardized both variables, what would be the regression equation that predicts
standardized mortgage amount from standardized interest rates? If we standardized both
variables, what would be the regression equation that predicts standardized interest rates from
standardized mortgage amount?
Solution
?

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