Running Head : Statistics[Name]May 20091 .-The z-scores are used when determining how encourage a data point is from the mean of the population in terms of number of standard divergences . When taking only a adjudicate of that population and obtaining the strain mean and standard parenthesis of that sample , the t-score is used instead of the z-score for determining how far a score in that sample is away from the mean of that sample in terms of the number of sample standard deviations . This doer that z is to population as t is to sample . On the other hand , while both scores oral sex the distance of a data point from the center , the centile rank indicates how many data points are lower than a particular data point . Thus , a 99th percentile rank means that the point is part of the top 1 of all data points (Freedman et . al 20072 .
-When there are 2 main(a) variables , the bipartite analysis of variance should be used . A two-way ANOVA considers two independent variables , one delineated by the rows and the other represented by the columns . When there are more(prenominal) than two variables , n-way ANOVAs are considered , where n refers to the number of independent variables . Since ANOVA and t-test are both parametric tests , they both train the assumptions of normality and random sampling . However , a fundamental difference resulting from an ANOVA test would still need a gestate hoc test such as the Scheffe...If you wa nt to hold up a full essay, order it on our! website:
OrderCustomPaper.comIf you want to get a full essay, visit our page:
write my paper
No comments:
Post a Comment