c) Construct a 95% confidence interval for NFS. Interpret this interval.
Once again, it might be useful to note that “=T.INV.2T(0.05,17)” = 2.11,“=T.INV.2T(0.5,17)” = 0.69 and “=T.INV.2T(0.1,17)” = 1.74.
(d) What are the F-statistic and corresponding p-value testing in the above regression? Sketch (roughly) the F distribution, and indicate the relative locations of the F-stat, F-crit (which is, in this case, 3.01), and the rejection region for an F-test on this model. What would your conclusion be?
(e) The researcher has also estimated a quadratic relationship between the number of admissions and the gross box office. Where the regression output is shown as follow. What are the major differences you have found from the previous model? Can you think of any reasons to these differences?
Attachment:- 503334_1_Practice-Final-Exam.pdf