An instructor of statistics claims that students in his section will score higher than the students in a colleague’s statistics section. The mean score for 35 students in his section is 24.5 and the standard deviation is 3.8. The mean statistics score of 30 of the colleague’s students is 22.7 and the standard deviation is 4.1.  At a = 0.011. Find Z0

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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An instructor of statistics claims that students in his section will score higher than the students in a colleague’s statistics section. The mean score for 35 students in his section is 24.5 and the standard deviation is 3.8. The mean statistics score of 30 of the colleague’s students is 22.7 and the standard deviation is 4.1.  At a = 0.011. Find Z0


 

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Step 1

The random variable is score.

There are two independent samples which are section and colleague’s students.

Both samples follows normal distribution.

We have to find the value of test statistic.

This is z-test for two independent samples.

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