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Name: A school psychologist notes that the average number of times that stud
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Description: A school psychologist notes that the average number of times that students are disrup- tive during class is 1.4 (u 1.4] times per day Following recent classroom policy changes the psychologist tests if the number of disrup- tions during class has cha

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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A school psychologist notes that the average number of times that students are disrup- tive during class is 1.4 (u 1.4] times per day Following recent classroom policy changes the psychologist tests if the number of disrup- tions during class has changed. He records the following number of disruptions observed during a class day: 2, 4,3, 5, 4, 1, 1, and 4

1. Test the hypothesis that the number of complaints has increased or decreased using a .05 level of significance. State the value for the test stastistic and the decision to retain or rejct the null hypothesis.

2.compute effect size using estimated Cohen's D.

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