nts in two elementary school classrooms were given two versions of the same test, but with the order of the questions arranged from easier to more difficult in version A and in reverse order in version B. Randomly selected students from each class were given version A and the rest given version B. The results are  Version A:n1=31,x¯1=83,s1=4.6Version B:n2=32,x¯2=78,s2=4.3 Use a 0.01 significance level to test the claim that Version A is easier than version B.(Make sure you have the four steps shown similar to the examples that I gave) Assume that the two independent samples have been randomly selected from normally distributed populations.   Instruction: 1) Must contains 4 steps as shown on the instructor's video. 2) Must identify whether the null hypothesis or the

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Students in two elementary school classrooms were given two versions of the same test, but with the order of the questions arranged from easier to more difficult in version A and in reverse order in version B. Randomly selected students from each class were given version A and the rest given version B. The results are 

Version A:n1=31,x¯1=83,s1=4.6Version B:n2=32,x¯2=78,s2=4.3

Use a 0.01 significance level to test the claim that Version A is easier than version B.(Make sure you have the four steps shown similar to the examples that I gave)

Assume that the two independent samples have been randomly selected from normally distributed populations.

 

Instruction:

1) Must contains 4 steps as shown on the instructor's video.

2) Must identify whether the null hypothesis or the alternative hypothesis is the claim.

3) When doing the calculation, do not calculate standard error.

4) When finding the p-value, must show whether it is left-, right-, or two-tailed.

5) When drawing conclusion, must follow the wording from the textbook. 

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