(b)A random sample of twelve students were chosen, and their midterm test score ( y), assignment score (x1), and missed classes (x2) were recorded as follows: Midterm Score, y Assignment Score, x1 Classes Missed, x2 85 65 8 74 50 7 76 55 5 90 65 2 85 55 6 87 70 3 94 65 2 98 70 5 81 55 4 91 70 3 76 50 1 74 55 4 (i)What is the fitted multiple linear regression equation of the form ˆy = b0 + b1x1 + b2x2? (ii)From part 6(b)(i) above, estimate the midterm test score grade for a student who has an assignment score of 60 and missed 4 classes. (iii)Assume that the data on ( y, x1, x2) above in 6(b) is inputted into SPSS, with the following results: ANOVA Source SS df MS F Regression a c f g Residual b d 20.406 Total 728.250 e
(b)A random sample of twelve students were chosen, and their midterm test score ( y), assignment score (x1), and missed classes (x2) were recorded as follows:
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(i)What is the fitted multiple linear regression equation of the form ˆy = b0 + b1x1 + b2x2?
(ii)From part 6(b)(i) above, estimate the midterm test score grade for a student who has an assignment score of 60 and missed 4 classes.
(iii)Assume that the data on ( y, x1, x2) above in 6(b) is inputted into SPSS, with the following results:
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A. At a 5% level of significance, test whether the individual variables, assignment score (x1) and missed classes (x2) are significant explanatory variables for the midterm test score.
B. Find the constants a,b,c,d,e,f, and g in the ANOVA table
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