What are parametric tests? Distinguish between a Z-test and a t-test. Provide an example of each one that might be appropriate for your current or previous place of employment. What are the advantages and disadvantages of nonparametric tests? When does one use nonparametric tests?
A parametric test takes its data from interval and ration measurements and therefore, is better than a non-parametric test. With these tests, there is an assumption about the parameter of the population where the sample was taken. It is assumed that the data shows a normal distribution and shows a similar variance when compared to another population. If these assumptions do not apply, then this would be a nonparametric test. With a parametric test, the data is given in absolute numbers or values rather than...
Excerpt from file: Whatareparametrictests?DistinguishbetweenaZtestandattest.Providean exampleofeachonethatmightbeappropriateforyourcurrentorpreviousplaceof employment.Whataretheadvantagesanddisadvantagesofnonparametrictests? Whendoesoneusenonparametrictests?
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