A medical researcher wishes to try three different techniques to lower blood pressure of patients with high blood pressure. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, the reduction in each subject's blood pressure is recorded. Use the Kruskal-Wallis test to find the critical value to test the claim that there is no difference in the distribution of the populations. Use a = 0.05. Group 1 Group 2 Group 3 16 13 11 17 10 17 14 7 20 8 13 18 9. 14 13 ..... O A. 3.195 O B. 1.960 O C. 5.991 O D. 4.153 9.
A medical researcher wishes to try three different techniques to lower blood pressure of patients with high blood pressure. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, the reduction in each subject's blood pressure is recorded. Use the Kruskal-Wallis test to find the critical value to test the claim that there is no difference in the distribution of the populations. Use a = 0.05. Group 1 Group 2 Group 3 16 13 11 17 10 17 14 7 20 8 13 18 9. 14 13 ..... O A. 3.195 O B. 1.960 O C. 5.991 O D. 4.153 9.
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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Transcribed Image Text:A medical researcher wishes to try three different techniques to lower blood pressure of patients with high blood pressure. The
subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an
exercise program, and Group 3 is assigned a diet program. At the end of six weeks, the reduction in each subject's blood
pressure is recorded. Use the Kruskal-Wallis test to find the critical value to test the claim that there is no difference in the
distribution of the populations. Use a = 0.05.
Group 1
Group 2 | Group 3
16
13
11
17
10
17
14
9
20
8
13
18
14
13
9
O A. 3.195
O B. 1.960
O C. 5.991
O D. 4.153
Transcribed Image Text:A researcher wants to know if the time spent in prison for a particular type of crime was the same for men and women.
A random sample of men and women were each asked to give the length of sentence received. The data, in years, are
Men
8
20
14
16
17 24
Women
10
listed to the right. Use the Wilcoxon rank sum test to find R, the sum of the ranks for the smaller sample, to test the
claim that there is no difference in the sentence received by each gender.
7
7
12
24
10
Men
12
20
10
17
21 22
Women
32
6
8
11
15 25
O A. 115.5
O B. 125.5
OC. 173.5
O D. 155.5
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