A Researcher Wants to Determine Whether the Means of Two

question 92

Multiple Choice

A researcher wants to determine whether the means of two independent populations are the same.She has two independent random samples,one from each population,shown in the following table: She uses the Mann-Whitney U test and a significance level of 0.05.The appropriate
Decision is ______.

• A) reject the null hypothesis that the two populations have different means
• B) fail to reject the null hypothesis that the two populations have different means
• C) reject the null hypothesis that the two populations have equal means
• D) fail to reject the null hypothesis that the two populations have equal means
• E) do nothing

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Definitions:

Variable Cost

Costs that vary directly with the level of production output, such as raw materials and labor costs directly involved in production.

Units

Measurements or quantities of a product or service that are produced or sold.

Sold

The past tense of sell, indicating that a transaction where goods were exchanged for money has been completed.

Conversion Cost

The combination of direct labor and manufacturing overhead expenses, representing the costs required to convert raw materials into finished products.