A Study Found Statistically Significant Results for a Hypothesis Tested

question 66

Multiple Choice

A study found statistically significant results for a hypothesis tested with an independent-samples t test.The author of the study reported her effect size for the test as 0.53.What is true of the two sample means?

• A) The two sample means overlap 53 percent.
• B) The two sample means likely come from the same distribution.
• C) The two sample means do not indicate meaningful differences between groups.
• D) The two sample means are 0.53 standard deviations apart.

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Definitions:

Net Operating Income

The total profit of a business after all operating expenses are deducted, but before taxes and interest are considered.

Fixed Expenses

Costs that do not fluctuate with the level of production or sales, remaining constant even when business activity levels change.

Rural Sales Territory

A geographic area located in the countryside where a company's sales representatives focus their marketing and sales efforts.

Net Operating Income

The profit generated from a company's everyday business operations, excluding taxes and interest.