If the P value is less than 5%, reject the null hypothesis; if the P value is .05 or more, don't reject the null hypothesis. Statistics textbooks -- and statisticians for that matter -- focus almost ...

Did you ever wonder why 19th century pirates are often represented wearing eye patches? I never did, because I assumed that it was for the obvious reason: they had lost an eye. Pirates, like many ...

Successful completion of this course demonstrate your achievement of the following learning outcomes for the MS-DS program: Define a composite hypothesis and the level of significance for a test with ...

Those who have been in my classes know that I often bring in knowledge from other disciplines to add to our understanding of the process of entrepreneurship. In any given day I might bring in concepts ...

An excellent post by my colleague John Nielsen-Gammon, the Texas State climatologist, can be found here. An excerpt: … consider a pot of water. Somebody you don’t know claims that they have invented a ...

This paper considers testing problems where several of the standard regularity conditions fail to hold. We consider the case where (i) parameter vectors in the null hypothesis may lie on the boundary ...