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An 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 0.05 level of significance assuming that the population distribution of the paired differences is approximately normal. Let scores before completing the prep course be Population 1 and let scores after completing the prep course be Population 2. SAT Scores Before Prep 1030 1370 1140 1220 1280 1480 1210 1500 1160 Course After Prep 1230 1560 1290 1420 1470 1520 1240 1790 1200 Course Copy Data Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.

An 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 0.05 level of significance assuming that the population distribution of the paired differences is approximately normal. Let scores before completing the prep course be Population 1 and let scores after completing the prep course be Population 2. SAT Scores Before Prep 1030 1370 1140 1220 1280 1480 1210 1500 1160 Course After Prep 1230 1560 1290 1420 1470 1520 1240 1790 1200 Course Copy Data Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.

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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An 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 0.05 level of significance assuming that the population distribution of the paired differences is approximately normal. Let scores before completing the prep course be Population 1 and let scores after completing the prep course be Population 2. SAT Scores Before Prep 1030 1370 1140 1220 1280 1480 1210 1500 1160 Course After Prep 1230 1560 1290 1420 1470 1520 1240 1790 1200 Course Copy Data Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
Transcribed Image Text:An 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 0.05 level of significance assuming that the population distribution of the paired differences is approximately normal. Let scores before completing the prep course be Population 1 and let scores after completing the prep course be Population 2. SAT Scores Before Prep 1030 1370 1140 1220 1280 1480 1210 1500 1160 Course After Prep 1230 1560 1290 1420 1470 1520 1240 1790 1200 Course Copy Data Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
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