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a. Determine a 95% confidence interval in terms of the values shown for each country. b. Provide an interpretation of the confidence intervals. Include in your interpretation a conclusion that can be drawn about which country has a higher average test score.

a. Determine a 95% confidence interval in terms of the values shown for each country. b. Provide an interpretation of the confidence intervals. Include in your interpretation a conclusion that can be drawn about which country has a higher average test score.

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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Format Tools Add-ons Help Last edit was seconds ago Nunito BIUA E- E E Normal text 12 E- E E A 4 L 5 7. Ninth-grade Test Scores The table below shows data from Canadian and U.S. ninth-grader test scores: Sample Standard Deviation Sample Size Sample Mean U.S. 300 95 4.5 Canada 250 90.5 4.1 a. Determine a 95% confidence interval in terms of the values shown for each country. b. Provide an interpretation of the confidence intervals. Include in your interpretation a conclusion that can be drawn about which country has a higher average test score. 7 8 9 3
Transcribed Image Text:Format Tools Add-ons Help Last edit was seconds ago Nunito BIUA E- E E Normal text 12 E- E E A 4 L 5 7. Ninth-grade Test Scores The table below shows data from Canadian and U.S. ninth-grader test scores: Sample Standard Deviation Sample Size Sample Mean U.S. 300 95 4.5 Canada 250 90.5 4.1 a. Determine a 95% confidence interval in terms of the values shown for each country. b. Provide an interpretation of the confidence intervals. Include in your interpretation a conclusion that can be drawn about which country has a higher average test score. 7 8 9 3
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