Exam 7: Non-Parametric Models

A survey was conducted with customers of two gas suppliers - Atomic Gas and English Gas.The objective was to assess whether one group of customers spent more (in £s)on their annual gas bill than the other.Initial tests suggested the absence of normality in the dependent variable.A non-parametric test was deemed appropriate,but which do you think that the researchers should use?

The non-parametric equivalent of the one-way between-measures ANOVA is the?

A group of 8 stockbrokers were assessed for the worth of their investments over the course of a year.The following year the CEO reduced the commission rate payable to stockbrokers making good investments.Once again,the value of the broker's annual investment was totalled.The data were not found to be normally distributed.Which non-parametric test should the analyst therefore use on this project?

What do you think is the primary reason why some business analysts prefer to use parametric tests even when the normality assumption has been violated?

The non-parametric equivalent of the two-sample independent t-test is the?

The non-parametric equivalent of the one-way repeated-measures ANOVA is the?

A colleague has asked you what the Jonckheere-Terpstra test assesses.You tell them that it?

In an enterprise competition,10 entrepreneurs are asked to rate two business plans for potential success on a scale of 1(low value)to 5 (high value).What procedure would be used to test the hypothesis that the ratings are not significantly different?

You would like to test whether male or female managers incubate teams with higher employee satisfaction.You therefore run the Mann-Whitney test on the data.What do you expect will be approximately equal in the two groups if you accept the null hypothesis?

An analyst at your company has told you that the non-parametric equivalent of the paired t-test is the 'non-paired u-test'.You don't believe him,but what is the correct answer?

Your manager has asked you to find out the alternative name for 'non-parametric test'.Which of the following will you feed back?