![(6) [4 pts] Let GPA denote a random variable for the college students grade point average, and SAT denote a random variable for the college students SAT score. Suppose that there is the following relationship between GPA and SAT: E[GPAISAT] 68+.0025SAT. (a) What is the expected GPA when SAT- 750? What is the expected GPA when SAT- 1500? (b) If E SAT 1000, what is E[GPA]?](http://img.homeworklib.com/questions/9852b880-6f82-11ea-b050-a3b3d0fe8e46.png?x-oss-process=image/resize,w_560)
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![The and SAT 0 2- S5S EGPA ISAT = 150o] = 0.68 +0.0025 Mİ so - 4.43](http://img.homeworklib.com/questions/98baebb0-6f82-11ea-bbf6-abc9fcb66483.png?x-oss-process=image/resize,w_560)
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(6) [4 pts] Let GPA denote a random variable for the college student's grade point average,...
Suppose that there is the following relationship between GPA and SAT: E[GPAjSAT] = .68 + .0025SAT....
Suppose that there is the following relationship between GPA and SAT: E[GPAjSAT] = .68 + .0025SAT. (a) What is the expected GPA when SAT= 750? What is the expected GPA when SAT= 1500? (b) If E[SAT] = 1000, what is E[GPA]?
The following table contains ACT scores and the GPA (grade point average) for eight college students.
4. The following table contains ACT scores and the GPA (grade point average) for eight college students. Grade point average is based on a four-point scale and has been rounded to one digit after the decimal: a. Estimate the relationship between GPA and ACT using OLS; that is, obtain the intercept and slope estimates in the equation Comment on the direction of the relationship. Does the intercept have a useful interpretation here? Explain. How much higher is the GPA predicted to be...
Grade point average. The director of admissions of a small college seleeted 120 students at random...
Grade point average. The director of admissions of a small college seleeted 120 students at random from the new freshman class in a study to determine whether a student's grade point average (GPA) at the end of the freshman year (Y) can be predicted from the ACT test score (X) The results of the study follow. Assume that first-order regression model (1.1) is appropriate. 2 118 119 120 i: Xi: 21 Yi: 14 28 28 16 28 3.897 3.885 3.778.....
The following table contains the ACT scores and the GPA (grade point average) for three college...
The following table contains the ACT scores and the GPA (grade point average) for three college students. Grade point average is based on a four-point scale and has been rounded to one digit after the decimal. Estimate the relationship between GPA and ACT using OLS. Consider the slope estimate (beta1_hat) in equation GPA_hat=beta0_hat+beta1_hat*ACT. Is the relationship between GAP and ACT positive or negative? Student GPA ACT 1 2.8 21 2 3.4 24 3 3.0 26
The following table contains the ACT scores and the GPA for eight college students. Grade point...
The following table contains the ACT scores and the GPA for eight college students. Grade point average is based on a four-point scale and has been rounded to one digit after the decimal. Student GPA ACT 1 2.& 21 2 3.4 24 3 3.0 26 4 3.5 27 5 3.6 29 6 3.0 25 7 2.7 25 8 3.7 30 a) Estimate the relationship between GPA and ACT using OLS: that is, obtain the intercept and slope estimates in the...
7.3.1-E Overview question 1 of 6,0 complete Question Help Suppose the average grade point average (GPA)...
7.3.1-E Overview question 1 of 6,0 complete Question Help Suppose the average grade point average (GPA) for the undergraduate student population at Gokley Beacom College is 3.20. The following list is a random sample of the GPAs of five students from the college Calculate the sampling error 2.56 4.11 3.52 2.93 3.73 The sampling error for the given sample is (Type an integer or a decimal. Do not round.)
One common system for computing a grade point average (GPA) assigns 4 points to
One common system for computing a grade point average (GPA) assigns 4 points to an A 3 points to a B, 2 points to a C, 1 point to a D, and O points to an F. What is HW Score: 72.45%, 5.07 of 7 pts pr, the GPA of a student who gets an A in a 3-credit course, a B in each of two 4 credit courses, a C in a 3 credit course, and a D in...
6. Interpreting statistical software output in regression Aa Aa Suppose you work in the admission...
6. Interpreting statistical software output in regression Aa Aa Suppose you work in the admissions department of a small liberal arts college. You wonder if you can predict students' college grade point averages (GPAs) by their SAT scores. You randomly select 50 recent graduates and collect their SAT scores and college GPAs. You use a statistical software package to run a regression predicting college GPA from SAT score. Use the following output to answer the questions that follovw Descriptive Statistics...
One common system for computing a grade point average (GPA)assigns 4 points to an A,...
One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a 3-credit course, a B in each of three 2-credit courses, a C in a 4-credit course, and a D in a 3-credit course?The mean grade point score is ?
One common system for computing a grade point average (GPA) assigns 4 points to an A,...
One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a 2-credit course, a B in each of three 3-credit courses, a C in a 4-credit course, and a D in a 3-credit course? The mean grade point score is _______ (Round...
4. The following table contains ACT scores and the GPA (grade point average) for eight college students. Grade point average is based on a four-point scale and has been rounded to one digit after the decimal: a. Estimate the relationship between GPA and ACT using OLS; that is, obtain the intercept and slope estimates in the equation Comment on the direction of the relationship. Does the intercept have a useful interpretation here? Explain. How much higher is the GPA predicted to be...
Grade point average. The director of admissions of a small college seleeted 120 students at random from the new freshman class in a study to determine whether a student's grade point average (GPA) at the end of the freshman year (Y) can be predicted from the ACT test score (X) The results of the study follow. Assume that first-order regression model (1.1) is appropriate. 2 118 119 120 i: Xi: 21 Yi: 14 28 28 16 28 3.897 3.885 3.778.....
The following table contains the ACT scores and the GPA for eight college students. Grade point average is based on a four-point scale and has been rounded to one digit after the decimal. Student GPA ACT 1 2.& 21 2 3.4 24 3 3.0 26 4 3.5 27 5 3.6 29 6 3.0 25 7 2.7 25 8 3.7 30 a) Estimate the relationship between GPA and ACT using OLS: that is, obtain the intercept and slope estimates in the...
7.3.1-E Overview question 1 of 6,0 complete Question Help Suppose the average grade point average (GPA) for the undergraduate student population at Gokley Beacom College is 3.20. The following list is a random sample of the GPAs of five students from the college Calculate the sampling error 2.56 4.11 3.52 2.93 3.73 The sampling error for the given sample is (Type an integer or a decimal. Do not round.)
6. Interpreting statistical software output in regression Aa Aa Suppose you work in the admissions department of a small liberal arts college. You wonder if you can predict students' college grade point averages (GPAs) by their SAT scores. You randomly select 50 recent graduates and collect their SAT scores and college GPAs. You use a statistical software package to run a regression predicting college GPA from SAT score. Use the following output to answer the questions that follovw Descriptive Statistics...
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