Refer to the temperature data given in Exercise 12. A regression equation could be computed to relate x = average June temperature and y = average December temperature across cities. (This was requested in Exercise 25.) Answer the following questions without actually computing the regression equation.
a. Would the intercept of this regression equation have a useful interpretation in this situation? If you think not, explain why not. If you think it would, give the interpretation.
b. Would the slope of this regression equation have a useful interpretation in this situation? If you think not, explain why not. If you think it would, give the interpretation.