Which of the Following Are Assumptions Underlying the Use of the T

question 101

Multiple Choice

Which of the following are assumptions underlying the use of the t test for independent groups?

• A) the variance of each population is known
• B) the sampling distribution of must be normal
• C) the samples are drawn from populations having equal variances
• D) all of these
• E) the sampling distribution of must be normal and the samples are drawn from populations having equal variances

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Definitions:

Marginal Product

The additional output resulting from using one more unit of a particular input, holding other inputs constant.

Labor Hours

The total hours of work provided by employees or workers within a specific timeframe.

Marginal Rate

The rate of change of a variable as another variable changes, typically used in the context of taxes, substitution, or transformation rates.

Technical Substitution

The process of replacing one technique or technology with another that is more efficient or cost-effective.