Randomly Chosen MBA Students Were Asked Their Opinions About the Ideal

question 53

Multiple Choice

Randomly chosen MBA students were asked their opinions about the ideal number of children for a married couple.The sample data were entered into MegaStat,and the following results were produced. To compare the means,would it be appropriate to use a test that assumes equal variances?

• A)Yes,because by pooling our variances,we can simplify our calculations.
• B)Yes,we should assume equal variances when comparing independent samples.
• C)No,because the sample statistics show that the variances are unequal at α = 0.05.
• D)No,because the variances will differ because the means differ significantly.

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Definitions:

Population Parameter

A numerical characteristic or measure of an entire population, such as a mean (average), variance, or proportion.

Relative Efficiency

A measure comparing the precision or performance of two statistical estimators or methods.

Unbiased

An attribute of an estimator in statistics that means the expected value of the estimator equals the true parameter value it estimates.

Consistent

Referring to an attribute or behavior that is reliable and uniform over time, showing little to no variation.