The average scores in a pre-final examination scored by under graduate students in the previous year was 63. A tutor, after conducting the weekly tests, wishes to check whether that average has increased this year. For a sample of 70 students, the mean score was 68 with a standard deviation of 15. Find the rejection region for the standardized test statistic at the 10% significance level. Group of answer choices [1.282, ∞) (-∞,-1.645] U [1.645, ∞) (-∞,-1.282] U [1.282, ∞) (-∞,-1.282] [1.645, ∞)
The average scores in a pre-final examination scored by under graduate students in the previous year was 63. A tutor, after conducting the weekly tests, wishes to check whether that average has increased this year. For a sample of 70 students, the mean score was 68 with a standard deviation of 15. Find the rejection region for the standardized test statistic at the 10% significance level. Group of answer choices [1.282, ∞) (-∞,-1.645] U [1.645, ∞) (-∞,-1.282] U [1.282, ∞) (-∞,-1.282] [1.645, ∞)
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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The average scores in a pre-final examination scored by under graduate students in the previous year was 63. A tutor, after conducting the weekly tests, wishes to check whether that average has increased this year. For a sample of 70 students, the mean score was 68 with a standard deviation of 15.
Find the rejection region for the standardized test statistic at the 10% significance level.
Find the rejection region for the standardized test statistic at the 10% significance level.
Group of answer choices
[1.282, ∞)
(-∞,-1.645] U [1.645, ∞)
(-∞,-1.282] U [1.282, ∞)
(-∞,-1.282]
[1.645, ∞)
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