In this paper we suggest a way to compute the two-sided P-value as the smallest significance level for which, given the data, we would reject the null hypothesis in favour of a two-sided alternative by using the appropriate uniformly most powerful unbiased test. The method is illustrated ...
The primary efficacy objective was to evaluate rank order of study products in terms of level of extrinsic dental stain removal after 8 weeks’ twice-daily brushing. This was achieved by comparing adjusted mean change from baseline in overall MLSI (A × I); calculated by analysis of covar...
between the two groups (*P < 0.05; ***P < 0.001; two-sided Mann–WhitneyU-test; CA19-9:P < 0.0001; CEA:P < 0.0001; Ki67:P = 0.025; tumor size:P = 0.019). Data were presented as median with interquartile range.gScatterplot of S100P and SPP1 expressio...
We statistically evaluated these contrasts with the two one-sided procedure (TOST) for equivalence testing (Lauzon and Caffo 2009; Lakens 2017b). First, we picked a priori a smallest effect size of interest (sesoi) as the difference in discrimination performance of 0.1 units in either ...
It is also shown that the nonrandomized two-sided Wilcoxon test for equal sample sizes with the least positive significance level is unbiased.关键词:Rank test Unbiasedness Two-sample problem Power curve Location parameter Beta distribution DOI: 10.1007/s10463-005-0019-3 ...
The level of significance was set at p<0.05. The shape task In the shape task, the actor wrote, as a gesture, a horizontally reversed capital letter; the viewer’s task was to say what letter he or she saw. The error rate of the shape Implications on the design of two-sided ...
TitleFisher’s exact test two-sided idiosyncrasy AuthorWesley Eddings, StataCorp Stata’s exact confidence interval for the odds ratio inverts Fisher’s exact test. We might expect the interval and test to agree on statistical significance, but this is not always the case. Here is an example:...
Raised conditional level of significance for the 2 × 2 table when testing the equality of two probabilities . Statistica Neerlandica 24 : 1 – 35 . [CrossRef]View all references) proposed a procedure, which raises the significance level used for the p-value test derived from Fisher's ...
ANOVA was performed using Tukey’s HSD test to assess the statistical significance of multiple comparisons. Kruskal-Wallis test was used to compare the significance of differences in alpha diversity among four niches. Student’s t tests (two-sided) were used to compare the differences in two ...
A null hypothesis, Ho: u=u_0 s to be tested against a two-sided hypothesis. A sample is taken, x isdetermined and used as the basis for a C-level confidence interval (e.g., C= 0.95) for μ. The researchernotes that uo is not in the interval. Another researcher chooses to do ...