A professor wants to investigate the relationship between the grades students obtain in their midterm exam (X) and the grades they obtain (Y,) in the final exam.The professor collects data from 65 randomly chosen students. The estimated OLS regression is.ŷ = 45 + 0 .85X,where Y, denotes the predicted value of the grades obtained in the final exam by the " individual and X, denotes the grades obtained in the midterm exam.From the sample data he makes the following calculations:65E (X-X)² = 230-48,j= 165042^2= 425.23,j= 1^2where u, is the square of the residual for the " observation.01He wants to test whether the grades obtained in the midterm exam have any effect on the grades obtained in the final exam or not.Which of the following are the null and the alternative hypotheses of the test the professor wishes to conduct?O A. Ho B1 0.85 vs. H, B1 = 0.85.%3DClick to select your answer(s).(DOLLP.響 65E (X,-X)² = 230.48,73D1652 (X; -X)2u, = 425.23,^2where u, is the square of the residual for the " observation.He wants to test whether the grades obtained in the midterm exam have any effect on the grades obtained in the final exam or not.Which of the following are the null and the alternative hypotheses of the test the professor wishes to conduct?O A. Ho: B, 0.85 vs. H,: B1 =0.85.O B. Ho: B1 = 0 vs. H,: B, 0.O C. Ho: B = 0.85 vs. H : B1#0.85.O D. Ho B, # 0 vs. H,: B, = 0.%3DIf B, is the estimated slope coefficient, then the value of standard error of the estimated slope (SE (B, )) is(Round your answer to four decimal places.)Click to select your answer(s).WDELL0日

B option is correct as we want to check that, there is any significant effect of x on y or not. So…

he professor collects data from 65 randomly chosen students. The estimated OLS regression is: Y = 45 + 0.85X, where Y, denotes the predicted value of the grades obtained in the final exam by the " individual and X, denotes the grades obtained in the From the sample data he makes the following calculations: 65 E (x-X) = 65 = 425.23, i= 1

he professor collects data from 65 randomly chosen students. The estimated OLS regression is: Y = 45 + 0.85X, where Y, denotes the predicted value of the grades obtained in the final exam by the " individual and X, denotes the grades obtained in the From the sample data he makes the following calculations: 65 E (x-X) = 65 = 425.23, i= 1

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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