Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 26 Apr 2018 My Price 5.00

OLS regression

Suppose that a researcher, using data on class size (CS) and average test scores from 100 third-grade classes, estimates the OLS regression

a. A classroom has 22 students. What is the regression's prediction for that classroom's average test score?

b. Last year a classroom had 19 students, and this year it has 23 students. What is the regression's prediction for the change in the classroom average test score?

c. The sample average class size across the 100 classrooms is 21.4. What is the sample average of the test scores across the 100 classrooms? (Hint: Review the formulas for the OLS estimators.)

d. What is the sample standard deviation of test scores across the 100 classrooms? (Hint Review the formulas for the R2 and SER.)

 

Answers

Maurice Tutor
(5)
Status NEW Posted 26 Apr 2018 07:04 PM My Price 5.00

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