Mathematics, 09.03.2020 18:42 castor1358
E(y) = β0 + β1x1 + β2x2 + β3x3
where y represents exam score (0 to 100 points), x 1 represents the amount paid to a teacher (in dollars), x 2 represents the number of hours of sleep per week, and x3 represents number of study hours.
Suppose that we used a sample of 100 students to fit the following prediction equation:
ŷ= 65 + 1.5x1 + 0.2x2 + 0.5x3
Choose the most accurate interpretation for the slope of the amount paid to a teacher (in dollars).
Group of answer choices
a. For each additional 1.5 dollars paid to a tutor, we expect exam score to increase by 1 point, holding number of hours of sleep per week and number of study hours fixed.
b. For each additional dollar paid to a tutor, we expect exam score to increase by 1.5 points, holding number of hours of sleep per week and number of study hours fixed.
c. For each additional dollar paid to a tutor, we expect exam score to increase by 1.5 points.
d. When the amount paid to a tutor, number of hours of sleep per week, and number of study hours are set to 0, we expect an exam score of 65 points.
Answers: 3
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E(y) = β0 + β1x1 + β2x2 + β3x3
where y represents exam score (0 to 100 points), x 1 repr...
where y represents exam score (0 to 100 points), x 1 repr...
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