Answered: Three different drugs were used in the…

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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Question

15-Three different drugs were used in the treatment of patients suffering from a certain disease in the hospital. Considering the age of the patients, it is desired to investigate whether there is a difference between the healing times of different drugs. Find the account value using the Friedman S test.

4.00

2.75

NS)

6.50

3.65

TO)

2.25

Drug Types
Age
A
B
D
groups
1
20
14
19
30
18
12
20
32
24
18
30
28
4
24
20
30
34
2.
3.

Expert Solution

Step 1

Friedman S test is a non-parametric test to test the difference between several means of samples belonging to non-normal distributions.

The given data is about testing the healing times of the three different drug types.

Here,

Number of groups, n=4

Number of treatment(drugs), k=4

R=total ranks for each of the treatment columns

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