Reconsider the previous exercise and the data in TestTimes.

a. Report the equation of the least squares line for reporting test score from time to take the test.
b. Interpret the value of the slope coefficient.
c. Interpret the value of the intercept coefficient. Does this make sense in this context?
d. Report and interpret the value of r².

Data from previous exercise

The data file TestTimes contains data on the time (in minutes) taken by 33 students to complete a multiple choice exam and the students’ scores (as a percentage out of 100) on the exam. Investigate whether the data provide evidence of an association between the time to take the test and the score achieved on the test.