Answered: 5. An experiment was conducted to…

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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5. An experiment was conducted to determine whether a test designed to identify a certain form of mental illness could be easily interpreted with little psychological training. The test was given to 100 people (half of which had the illness, and half did not) and fifteen people were asked to evaluate them. The fifteen judges were five staff members of a mental hospital, five trainees at the hospital, and five undergraduate psychology majors. The results in the table give the number of the 100 tests correctly classified by each judge. Analyze the data with the Kruskal-Wallis or Friedman test statistics.

a) Is there evidence to suggest that there are differences between staff, trainees, and students to interpret the test?
b) Briefly write a short report of your findings

Staff
Trainees
Students
78
80
65
76
69
74
80
75
78
79
81
80
86
72
75

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