Wilcooxn Test

1). Can the formal hypothesis establishing approach be use for nonparametric trial runs? How ar parametric and nonparametric statistics opposite? How are parametric and nonparametric statistics similar? some(prenominal) kinds of evidences smoke be utilized for formal hypothesis testing including the 5 step approach. The primary difference between them is that the parametric tests produce a extra dispersion much(prenominal) as the habitual or t scattering. nonparametric tests do not happen upon this. Both are similar in that they use development almost a sample to draw inferences about a population. 2). infra what circumstances must a nonparametric test be use? Explain. What are the strengths and weaknesses of nonparametric tests? Can the outcomes of nonparametric tests be generalized to populations? Nonparametric tests must be used when the selective randomness jadet satisfy the customary presumptuousness of the parametric test. They butt like wise be used for median(a)s or for calamity tables that dont fall into either distribution. Nonparametric tests are useful because they dont assume any particular distribution. I undersurface use them when my data is non-normal, such as in a test for means. Nonparametric tests can also be used when the distribution is to be careworn from the data.

For example, in the chi-square test for independence, I cant use a test that relies on a particular distribution because the distribution is always different. Another advantage of a non-parametric test is that it can be used for measures such as median that dont have any eq pa rametric test. unconnected the mean, sample! medians do not fall into a normal distribution, because medians do not use all of the in stock(predicate) information in the sample. The main weakness of a nonparametric test is that it may have less power than the equivalent parametric test. 3). Why do you use the chi-square statistic? What type of data is used with chi-square analysis? The chi-square statistic can be used in both different but related contexts. The first is to make out...If you expect to get a full essay, order it on our website: OrderCustomPaper.com

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