Use the data in SDATA.XLS and statistical software to run the following regression:

where GPA = grade point average.
ST = study time per day SAT = SAT score (A) Interpret the value you obtained for ˆ
0.
(B) Interpret the value you obtained for ˆ
1.
(C) Perform a positive sign test on ˆ
1. Show the five-step procedure.
(D) Interpret the value you obtained for ˆ
2.
(E) Perform a test to determine if ˆ
0 (F) Interpret the value you obtained for R2 .
(G) Which regression fits the data better, this one or the one in question 1? On what do you base your response?
(H) The typical student in the survey studies about 3.0 hours per day and had an SAT score of 1,125.
What would you expect the average student’s GPA to be given your research into this matter?

Transcribed Image Text:

GPA; = + ST; + BSAT+ e