The following table contains observed frequencies for a sample of . Column Variable Row Variable A...
The following table contains observed frequencies for a sample of . Column Variable Row Variable A B C
P 35 50. 40
Q 15 20. 30
Test for independence of the row and column variables using .
What is the p-value?
Compute the value of the test statistic (to 2 decimals). What is the p-value?
Homework Answers
Solution :
The statistic software output for this problem is:
Contingency table results:
Rows: Row
Columns: None
| B | A | C | Total | |
|---|---|---|---|---|
| P | 50 | 35 | 40 | 125 |
| Q | 20 | 15 | 30 | 65 |
| Total | 70 | 50 | 70 | 190 |
Chi-Square test:
| Statistic | DF | Value | P-value |
|---|---|---|---|
| Chi-square | 2 | 3.7081319 | 0.1566 |
Test statistic = 3.71
P-value = 0.1566
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