(b)plot housing STARTS aganist the 30-year fixed mortgage rate.这个是不是指只要把两个序列放在一起就好了？

Estimate the simple regression of STARTS ON FIXED-RATE.


Plot the fitted regression line along with the data scatter from(b).

PLOT houses sold against FIXED_RATE .(d)


Estimate the simple regression of SOLD on FIXED_RATE(这个简单衰退 是选那个QRL公式么)，discuss the interpretation of the results as well as any comments you may have about how well the lines fits the data. plot the fitted regression line along with the data scatter from(d),


if the 30-year FIXED_RATE mortgage rate is 6%, predict the number of monthly housing starts.