Non-parametric tests

Worked examples (6)

• 1Spotting when a non-parametric test is needed
• 2One sample, two samples or paired?
• 3Stating hypotheses about a median
• 4Hypotheses for a paired 'no change' test
• 5Two independent samples — choosing and framing the test
• 6Why a sign test, not a signed-rank test?

Model answers (6)

• ✓Model answer 1
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer 4
• ✓Model answer 5
• ✓Model answer 6

Worked examples (6)

• 1Wilcoxon signed-rank test for a single sample median
• 2Wilcoxon rank-sum test for two independent samples
• 3Paired signed-rank test on 'before and after' data
• 4Rank-sum test with tied observations
• 5Large-sample normal approximation for the signed-rank statistic
• 6Large-sample normal approximation for the rank-sum statistic

Model answers (6)

• ✓Model answer 1
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer 4
• ✓Model answer 5
• ✓Model answer 6