Which Would Be a Reason to Use a Mann-Whitney Rank

question 60

Multiple Choice

Which would be a reason to use a Mann-Whitney rank sum test rather than a t-test to compare two groups?

• A) You are measuring fish.
• B) Your data are normally distributed.
• C) Your data are not normally distributed.
• D) Your data can be arranged in ranks.

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Definitions:

Break-Even Point

The point at which total costs and total revenue are equal, meaning no net loss or gain, and the business is breaking even.

Contribution Margin

The contribution margin represents the portion of sales revenue that is not consumed by variable costs and can contribute to covering fixed costs and generating profit.

Variable Cost

Costs that change in proportion to the level of production or sales activity.

Units

Basic measures or quantities of product or service in business operations, often used in contexts such as inventory, production, and sales.