Does Income Increase When You Get Married? to Investigate This,a

question 50

Multiple Choice

Does income increase when you get married? To investigate this,a college student has randomly selected people from his college town and collected income data for these people.They were categorized according to their marital status.The following results (in thousands of dollars) were obtained. The data are to be analyzed using the Wilcoxon rank sum test.Let W be the Wilcoxon rank sum test statistic equal to the sum of the ranks assigned to the married group.What is the expected value of W under the null hypothesis that the two distributions are the same?

• A)25
• B)27.5
• C)30
• D)55

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Definitions:

Variable Costing

An accounting method that only allocates variable costs to inventory, treating fixed costs as period expenses.

Contribution Margin

The amount by which the selling price of an item exceeds its variable costs, contributing towards covering fixed costs and generating profit.

Sales Personnel

Individuals in an organization responsible for selling products or services to customers, often including roles such as sales representatives, sales managers, and sales directors.

Sales Mix

The combination of different products or services that a company sells, affecting profitability depending on the margins of each item.