Scores on a standardized exam are known to follow a normal distribution with standard deviation σσ = 17. A researcher randomly selects 135 students and computes their average score. He reports that the mean score is 75.3, with a margin of error of 1.485. How confident are you that the mean score for all students taking the exam is in the interval (73.815, 76.785)? Confidence = %
Scores on a standardized exam are known to follow a normal distribution with standard deviation σσ = 17. A researcher randomly selects 135 students and computes their average score. He reports that the mean score is 75.3, with a margin of error of 1.485. How confident are you that the mean score for all students taking the exam is in the interval (73.815, 76.785)? Confidence = %
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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Scores on a standardized exam are known to follow a
How confident are you that the mean score for all students taking the exam is in the interval (73.815, 76.785)?
Confidence = %
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