2. Claire, a psychologist, was interested in the effects of five different kinds of drugs upon the mean time to complete a task. She used 30 subjects and randomly assigned 6 of them to each drug, A, B, C, D, and E. The data represent the time in minutes to complete the task. Use a 1% level of significance to test that the population mean times to complete the task are the same with each drug. The data are given in the table. Use H Test. A 28 27 30 22 18 19 19 28 28 27 19 29 30 23 30 16 29 22 26 26 35 24 33 33 19 19 24 16 27 27

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Using a kruskal-wallis non-parametric test . Solve the problem and interprets if the null is retain or rejected

2. Claire, a psychologist, was interested in the effects of five different kinds of drugs upon
the mean time to complete a task. She used 30 subjects and randomly assigned 6 of them to
each drug, A, B, C, D, and E. The data represent the time in minutes to complete the task.
Use a 1% level of significance to test that the population mean times to complete the task are
the same with each drug. The data are given in the table. Use H Test.
A
28
27
30
22
18
19
B
19
28
28
27
19
29
C
30
23
30
16
29
22
D
26
26
35
24
33
33
19
19
24
16
27
27
Transcribed Image Text:2. Claire, a psychologist, was interested in the effects of five different kinds of drugs upon the mean time to complete a task. She used 30 subjects and randomly assigned 6 of them to each drug, A, B, C, D, and E. The data represent the time in minutes to complete the task. Use a 1% level of significance to test that the population mean times to complete the task are the same with each drug. The data are given in the table. Use H Test. A 28 27 30 22 18 19 B 19 28 28 27 19 29 C 30 23 30 16 29 22 D 26 26 35 24 33 33 19 19 24 16 27 27
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