What is the critical value?What is the p-value? A SAT prep course claims to increase student scores by more than 60 points, on average. To testthis claim, 9 students who have previously taken the SAT are randomly chosen to take the prepcourse. Their SAT scores before and after completing the prep course are listed in the followingtable. Test the claim at the 0.01 level of significance.SAT ScoresBefore Prep Course 1010 980 1170 1200 1040 1280 1450 1470 1500After Prep Course1190 1280 1170 1370 1440 1500 1520Difference10 30 201100 126090 28020 80 13090

T test are used to measure the mean significance between the sample and population. It used when the…

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Math

Statistics

What is the critical value? What is the p-value?

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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Question

100%

What is the critical value?

What is the p-value?

A SAT prep course claims to increase student scores by more than 60 points, on average. To test
this claim, 9 students who have previously taken the SAT are randomly chosen to take the prep
course. Their SAT scores before and after completing the prep course are listed in the following
table. Test the claim at the 0.01 level of significance.
SAT Scores
Before Prep Course 1010 980 1170 1200 1040 1280 1450 1470 1500
After Prep Course
1190 1280 1170 1370 1440 1500 1520
Difference
10 30 20
1100 1260
90 280
20 80 130
90

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