Hypothesis testing based on Chi-square independence of attributes.
Sixty-four students in an introductory college economics class were asked how numerous credits they had earned in college, and how certain they were about their choice of major. Research problem: At _ = .01, is the degree of certainty independent of credits earned?
|
Credits Earned
|
Very Uncertain
|
Somewhat Certain
|
Very Certain
|
Row Total
|
|
0 to 9
|
12
|
8
|
3
|
23
|
|
10 to 59
|
8
|
4
|
10
|
22
|
|
60 or more
|
1
|
7
|
11
|
19
|
|
Column Total
|
21
|
19
|
24
|
64
|