申論題

5. (20 points in total, 5 for each) A statistics instructor is interested in applying a simple regression to test whether students' performance in the midterm exam (x, midterm exam scores) is associated with their performance in the final exam (y, final exam scores), and the data is as follows:
 
The linear regression of final exam score (Final) on midterm exam score (Midterm) is:
Final= -26.8 + 1.26Midterm
where the standard error of the slope is 0.168.

(a) First indicate the null and alternative hypotheses for this research question.