During the first day of classes for the second semester, the Statistics and Probability teacher of your class conducted a test to a random sample of 100 students. They got a mean score of 80.68 with a population standard deviation of 12. The population mean is 78.37. Use 0.05 level of significance. Find the Z-value.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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During the first day of classes for the
second semester, the Statistics and
Probability teacher of your class
conducted a test to a random sample of
100 students. They got a mean score of
80.68 with a population standard
deviation of 12. The population mean is
78.37. Use 0.05 level of significance.
Find the Z-value.
Transcribed Image Text:During the first day of classes for the second semester, the Statistics and Probability teacher of your class conducted a test to a random sample of 100 students. They got a mean score of 80.68 with a population standard deviation of 12. The population mean is 78.37. Use 0.05 level of significance. Find the Z-value.
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