chi-square_test
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I do not know exactly why the degree of freedom is important in a conceptual way -- so, having a difficulty explaining it. But, the idea behind it is that if you know totals of column and row, and the values of two cells (as a minimum requirement; | I do not know exactly why the degree of freedom is important in a conceptual way -- so, having a difficulty explaining it. But, the idea behind it is that if you know totals of column and row, and the values of two cells (as a minimum requirement; | ||
- | {{07-419434-a-tshirt-camp-scils-rutgers.jpg? | + | {{07-419434-a-tshirt-camp-scils-rutgers.jpg? |
The numbers you obtain from the book are 5.991 for the 0.05 probability and 9.210 for the 0.01 probability. They are called critical values. So the critical values are: | The numbers you obtain from the book are 5.991 for the 0.05 probability and 9.210 for the 0.01 probability. They are called critical values. So the critical values are: | ||
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__Another note:__ You might have a question... Hey, wait a minute... If I pick up some other numbers from the chi-square distribution table, the result would be totally different! | __Another note:__ You might have a question... Hey, wait a minute... If I pick up some other numbers from the chi-square distribution table, the result would be totally different! | ||
<WRAP clear /> | <WRAP clear /> | ||
- | For your information, | + | For your information, |
| df | .30 | .20 | .10 | .05 | .02 | .01 | .001 | | | df | .30 | .20 | .10 | .05 | .02 | .01 | .001 | | ||
| 1 | 1.074 | 1.642 | 2.706 | 3.841 | 5.412 | 6.635 | 10.827 | | 1 | 1.074 | 1.642 | 2.706 | 3.841 | 5.412 | 6.635 | 10.827 |
chi-square_test.1463356232.txt.gz · Last modified: 2016/05/16 08:20 by hkimscil