The likelihood ratio test is presented as a natural method to test for the presence of "always buy" and "never buy" consumers. The purchase sequence lengths and sample sizes required to estimate the ...

Cluster randomized trials in health care may involve three instead of two levels, for instance, in trials where different interventions to improve quality of care are compared. In such trials, the ...

Investigator: Right, here is the data set. What is the P value? Statistician: Oh, hello again. Look, I have some concerns about how the endpoint was assessed... Investigator: Fine, I'll add a sentence ...