br/gt -Do these results allow us to conclude at the 1% significanceSenior Medical Students A professor of Anatomy wanted to develop a multiple regression model to predict the students’ grades in

her fourth-year medical course. She decides that the two most important factors are the student’s grade

point average in the ﬁrst three years and the student’s major. She proposes the model y = ,8; + [31×1 + ﬂzxg

+ ﬂm + a, where y = Fourth-year medical course ﬁnal score (out of 100), x1 = G.P.A. in ﬁrst three years

(range from 0 to 12), x2 = 1 if student’s major is medicine and 0 if not, and x3 = 1 if student’s major is

biology and 0 if not. The computer output is shown below. THE REGRESSION EQUATION [S y = 9.14 + 6.73×1+10.42xg + 5.16×3 Coe s = 15.0 R—Sq = 44.2%

ANALYSIS OF VARIANCE a! SS MS Regression 17098 5699.333 25.386 21553 224.510

38651 Statistics and Probability