Wilcoxon rank-sum test: check 1
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(2,3,4,5\) and B: \(1,6,7,8,9,10\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the rank sum R for sample A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: review variant 1
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(3,4,5,6,7\) and B: \(1,2,8,9,10,11,12\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the rank sum R for sample A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: check 2
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(3,4,5,6,7\) and B: \(1,2,8,9,10,11,12\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the corresponding U statistic for A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: review variant 2
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(1,2,3\) and B: \(4,5,6,7\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the corresponding U statistic for A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: check 3
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(1,2,3\) and B: \(4,5,6,7\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the exact lower-tail p-value.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: review variant 3
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(2,3,4,5\) and B: \(1,6,7,8,9\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the exact lower-tail p-value.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: check 4
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(2,3,4,5\) and B: \(1,6,7,8,9\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the null expected rank sum for A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
Wilcoxon rank-sum test: review variant 4
Difficulty: ★★☆Maths4U Original · Short practice
Two independent samples have pooled ranks A: \(3,4,5,6,7\) and B: \(1,2,8,9,10,11\). There are no ties. Test whether A tends to be smaller.
Use a 5% significance level for a written conclusion. A distribution calculator may be used for numerical p-values.
Find the null expected rank sum for A.
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.