The test scores of a class consisting of 30 students are given in the table below. Perform the chi-square and the K-S tests on the data. Can the underlying distribution of the test score be accepted as normal at a 5% significance level?
|
Student
|
Test Score
|
|
1
|
99
|
|
2
|
45
|
|
3
|
60
|
|
4
|
80
|
|
5
|
95
|
|
6
|
100
|
|
7
|
95
|
|
8
|
91
|
|
9
|
85
|
|
10
|
87
|
|
11
|
77
|
|
12
|
75
|
|
13
|
61
|
|
14
|
71
|
|
15
|
85
|
|
16
|
88
|
|
17
|
83
|
|
18
|
85
|
|
19
|
79
|
|
20
|
81
|
|
21
|
82
|
|
22
|
55
|
|
23
|
63
|
|
24
|
75
|
|
25
|
82
|
|
26
|
88
|
|
27
|
77
|
|
28
|
78
|
|
29
|
41
|
|
30
|
70
|