Testing association through contingency tables: check 1
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 26 | 36 | 31 |
| II | 36 | 26 | 31 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the expected count in row I, category A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: review variant 1
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 27 | 37 | 32 |
| II | 37 | 27 | 32 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the expected count in row I, category A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: check 2
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 27 | 37 | 32 |
| II | 37 | 27 | 32 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the chi-squared statistic.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: review variant 2
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 28 | 38 | 33 |
| II | 38 | 28 | 33 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the chi-squared statistic.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: check 3
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 28 | 38 | 33 |
| II | 38 | 28 | 33 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the p-value.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: review variant 3
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 29 | 39 | 34 |
| II | 39 | 29 | 34 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the p-value.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: check 4
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 29 | 39 | 34 |
| II | 39 | 29 | 34 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the total count in the table.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Testing association through contingency tables: review variant 4
Difficulty: ★★☆Maths4U Original · Short practice
Independent observations form the following two-by-three table. Test independence without a continuity correction.
| Group | Category A | Category B | Category C |
|---|---|---|---|
| I | 30 | 40 | 35 |
| II | 40 | 30 | 35 |
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the total count in the table.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.