Answered: It is desired to investigate whether…

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

It is desired to investigate whether the departments of the first year engineering department students of a university's engineering faculty affect the success. For this, 3 engineering departments and 5 students randomly from these departments were selected. The grades these students received from the physics course are given in the table below. According to this table, test whether the effect of the students' departments on success is the same or not at the 0.05 significance level.

6.11

1.87

NS)

4.12

2.72

TO)

3.23

Chapters
Ös
80
53
60
79
95
industrial engineering
Computer engineering
75
65
90
50
47
Mechanical Engineering
70
73
55
62
76

Expert Solution

Step 1

From the given information,

Chapters	Q1	Q2	Q3	Q4	Q5
Industrial engineering	80	53	60	79	95
Computer engineering	75	65	90	50	47
Mechanical engineering	70	73	55	62	76

Now, assign the ranks for values row wise.

Chapters	Q1	Q2	Q3	Q4	Q5
Industrial engineering	80(4)	53(1)	60(2)	79(3)	95(5)
Computer engineering	75(4)	65(3)	90(5)	50(2)	47(1)
Mechanical engineering	70(3)	73(4)	55(1)	62(2)	76(5)
Rank total(T_i)	11	8	8	7	11