A Group of 8 Stockbrokers Were Assessed for the Worth

question 3

Multiple Choice

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?

• A) Paired t-test
• B) Mann-Whitney test
• C) Wilcoxon signed-rank test
• D) Wilcoxon rank-sum test

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