Two Independent Samples Are Drawn from Two Normal Populations,where the Population

question 117

Multiple Choice

Two independent samples are drawn from two normal populations,where the population variances are assumed to be equal.The sampling distribution of the ratio of the two sample variances is:

• A)normal
• B)Student-t
• C)F
• D)chi-squared

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Definitions:

Rectangle

A quadrilateral with four right angles and opposite sides that are parallel and of equal length.

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is presented without the unconditioned stimulus.

Classical Conditioning

A method where learning occurs by continuously associating two stimuli, making a response that was elicited by the second stimulus to be elicited by the first stimulus over time.

Conditioned Response

A response that is acquired after a previously neutral stimulus becomes linked with a stimulus that naturally induces a reaction.