Question

Recall that in exercise 39, the admissions officer for Clearwater College developed the following estimated regression equation relating final college GPA to the student’s SAT mathematics score and high-school GPA.
y = – 1.41 + .0235x1 + .00486x2
Where
x1 = high-school grade point average
x2 = SAT mathematics score
y = final college grade point average
A portion of the Minitab computer output follows.


a. Complete the missing entries in this output.
b. Use the F test and a .05 level of significance to see whether a significant relationship is present.
c. Use the t test and α = .05 to test H0: β1 = 0 and H0: β2 =0.
d. Did the estimated regression equation provide a good fit to the data?Explain.


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  • CreatedFebruary 16, 2015
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