A z-test is statistical test used to determine whether two population means are different when the variances are known and the sample size is large. What Is a Z-Test? A z-test is a statistical test ...

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Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 65, No. 3 (APRIL 2016), pp. 395-414 (20 pages) Motivated by an imaging study, the paper develops a non-parametric testing ...

This is a preview. Log in through your library . Abstract Wheeler and Watson (1964) have proposed a non-parametric test for the equality of two angular populations. We indicate the relation between ...