Nineteen ninety-five data from over 1,000 colleges published in u. s. news & world report were used to predict the percent of alumni who donate to a college from the average sat score of students attending the college. the resulting regression equation was ŷ = –29.29 + 0.05(x). this regression indicates that:

a. for every one-point increase in sat scores, a college can expect 0.05% fewer alumni to donate.
b. for every one-point increase in sat scores, a college can expect 0.05% more of its alumni to donate.
c. for every one-dollar increase in donations, the college can expect a half-point increase in sat scores.
d. most colleges have very high alumni donation rates.