What is the expected sign for ß

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Reference no: EM131529951

Question: In Exercise we considered the relationship between grade-point average (GPA) and weekly hours spent in the campus pub. Suppose that a freshman economics student has been spending 15 hours a week in the Orange and Brew during the first two weeks of class. Calculate a 90% confidence interval for his GPA in his first quarter of college if he continues to spend 15 hours per week in the Orange and Brew. Suppose that this freshman remains in school for four years and completes the required 12 quarters for graduation. Calculate a 909Cconfidence interval for his final cumulative GPA. Suppose that the minimum requirements for acceptance into most graduate schools for economics is 3.25. What are the chances that this student will be able to go to graduate school after completing his undergrate studies?

Exercise: At a large state university seven undergraduate students who are majoring in economics were randomly selected from the population and surveyed. Two of the survey questions asked were:

(1) What was your grade-point average (GPA) in the preceding term?

(2) What was the average number of hours spent per week last term in the Orange and Brew? The Orange and Brew is a favorite and only watering hole on campus. Using the data below, estimate with ordinary least squares the equation

G = α + βH

where G is GPA and H is hours per week in Orange and Brew. What is the expected sign for β? Do the data support your expectations?

Reference no: EM131529951

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