Im stuck with this question. Could anyone help, it would mean so much. Answers will be rated immediately:)

\fiii. Based on your expectations in part (b) of Exercise 2, test appropriate hypotheses concerning the slope coeicients using itests at the 5% signicance level. What are your decisions and conclusions? iv. Interpret the slope coeicients that you deemed signicant in the expected direction. (d) What do your two regressions suggest to you about the gross earnings generated by films that are based on books published before the release of the movie and by lms that are not based on books published before the release of the movie movles'? (Hint compare the corresponding slope estimate to each other.)