If We Are Testing for the Difference Between the Means

question 85

Multiple Choice

If we are testing for the difference between the means of two independent populations with equal variances, samples of and are taken, then the number of degrees of freedom is equal to:

• A) 29
• B) 28
• C) 14
• D) 13
• E) 11

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Definitions:

Conditional Distribution

A probability distribution of a variable that is derived from the population of variables dependent on a certain condition.

Automobiles

Wheeled motor vehicles used for transportation, typically powered by an internal combustion engine or electric motor.

Country of Origin

The country in which a person was born or where a product was manufactured or created.

Conditional Distribution

the probability distribution of a subset of variables given the values of other variables.