In a factorial design with two or more factors, there is nonzero interaction when the differences among the levels of one factor vary with levels of other factors. The interaction is disordinal or qualitative with respect to a specific factor, say A, if the difference between at least two levels of A is positive for some and negative for some levels of the other factors. Using standard methods ...

Kulldorff’s scan statistics identify likely spatial, temporal, and spatial-temporal clusters via likelihood hypotheses tests of whether the observed rate of cases within a geographic or longitudinal region is statistically larger than that outside the region. The conventional versions of this test are based on the assumption that all opportunities (e.g., people) inside the region have the same ...

Relative surprise regions are shown to minimize, among Bayesian credible regions, the prior probability of covering a false value from the prior. Such regions are also shown to be unbiased in the sense that the prior probability of covering a false value is bounded above by the prior probability of covering the true value. Relative surprise regions are shown to maximize both the Bayes factor in...

In this paper, we prove that the EMYCIN formula for the sequential propagation can be derived strictly from the deenition of the certainty factor according to probability theory. Some researchers think that this combination formula is inconsistent with the deenition of certainty factor in the sense of probability theory. This was not correct. Moreover, under the condition that there exists no n...

to achieve high seed yield of rapeseed varieties under semi cold rainfed conditions; twenty rapeseed varieties were compared in randomized complete block design with three replications in sararood agricultural research station for two years. combined analysis results indicated that there were significant differences at 5% probability level among years for number of days to start of flowering, n...