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classes lead to better student outcomes. You have c ou have collected data on 22 students at SDSU. You ge class size for the student. regression: Size + i s:

classes lead to better student outcomes. You have c ou have collected data on 22 students at SDSU. You ge class size for the student. regression: Size + i s:

MATLAB: An Introduction with Applications
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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You are interested in studying the relationship between class size and test scores. Past research has suggested that smaller classes lead to better student outcomes. You have decided to test this hypothesis. To do so, you have collected data on 22 students at SDSU. You have data on student GPA, and the average class size for the student. You estimate the following regression: GPA,= Bo + Bi Class Size + €₁ You get the following results: bo= 4.000 b₁ = .020 SE = 1.230 SE = 0.010 What is the 99% confidence interval for the slope parameter b₁? Use Table D. Note that the degrees of freedom will be n-2. Round your answer to the third decimal point. -0.0200.010 O-0.020+0.015 -0.0200.028 -0.0200.021
Transcribed Image Text:You are interested in studying the relationship between class size and test scores. Past research has suggested that smaller classes lead to better student outcomes. You have decided to test this hypothesis. To do so, you have collected data on 22 students at SDSU. You have data on student GPA, and the average class size for the student. You estimate the following regression: GPA,= Bo + Bi Class Size + €₁ You get the following results: bo= 4.000 b₁ = .020 SE = 1.230 SE = 0.010 What is the 99% confidence interval for the slope parameter b₁? Use Table D. Note that the degrees of freedom will be n-2. Round your answer to the third decimal point. -0.0200.010 O-0.020+0.015 -0.0200.028 -0.0200.021
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