A student at junior college conducted a survey of 20 randomly selected full time

Question

A student at junior college conducted a survey of 20 randomly selected full time students to determine the relation between the number of hours of video game playing each week x and grade-point average, y. She found that a linear relation exists between the two variables. The least sqaures regression line that describes this relation is y= -0.0518x + 2.9387

A.) Predict the grade point average of a student who plays video games 8 hours per week.

      The predicted grade point average is ____ . (round to the nearest hundredth as needed.)

B.) Intercept the slope.

       For each additional hour that a student spends playing video games in a week, the grade point average will _____ by ____ points on average.

Explanation / Answer

A.) Predict the grade point average of a student who plays video games 8 hours per week.

Y = -0.0518 * 8 + 2.9387

Y = 2.5243

b)

       For each additional hour that a student spends playing video games in a week, the grade point average will _decrease____ by _0.0518___ points on average.

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