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difference (first - second) in exam scores is -1.75 points with a standard deviation of 7.12 points. Assur the conditions for inference are met, what is the test statistic for testing the hypotheses

difference (first - second) in exam scores is -1.75 points with a standard deviation of 7.12 points. Assur the conditions for inference are met, what is the test statistic for testing the hypotheses

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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In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students at random who have already taken the exam. The students are enrolled in a six-week prep course to improve their scores. After the prep course, the students take the college-entrance exam again. The mean difference (first – second) in exam scores is -1.75 points with a standard deviation of 7.12 points. Assuming the conditions for inference are met, what is the test statistic for testing the hypotheses Hoi H oiH = 0; Hai H Di < 0? O t= -1.75 -0 7.12 35 0+1.75 O 1= 7.12 V35 -1.75 -0 O 1== 7.12 V35 1.75 -0 O t= 7.12 V35
Transcribed Image Text:In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students at random who have already taken the exam. The students are enrolled in a six-week prep course to improve their scores. After the prep course, the students take the college-entrance exam again. The mean difference (first – second) in exam scores is -1.75 points with a standard deviation of 7.12 points. Assuming the conditions for inference are met, what is the test statistic for testing the hypotheses Hoi H oiH = 0; Hai H Di < 0? O t= -1.75 -0 7.12 35 0+1.75 O 1= 7.12 V35 -1.75 -0 O 1== 7.12 V35 1.75 -0 O t= 7.12 V35
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