The shoulder tip pain study of Lumley  is re-investigated. It is shown that the new logarithmic quantile estimation (LQE) technique in  applies and behaves well under singular covariance structure and small sample sizes as in the shoulder tip pain study. The findings in  can be assured under weaker assumptions using a combination of LQE and an ANOVA type statistic.
All Science Journal Classification (ASJC) codes
- Statistics and Probability
- Statistics, Probability and Uncertainty