An Unbiased Estimator Is a Sample Statistic

question 49

Multiple Choice

An unbiased estimator is a sample statistic

• A)used to approximate a population parameter.
• B)which has an expected value equal to the value of the population parameter.
• C)whose value is usually less than the population parameter.
• D)that arises from samples that are of size 30 or fewer.

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Definitions:

Fear

Conditioned response to stimuli associated with painful events; motivates avoidance of aversive events.

Pain

An unpleasant sensory and emotional experience associated with actual or potential tissue damage.

Escape

A type of behavior where an individual learns to perform an action to terminate an ongoing, unpleasant stimulus or situation.

Punisher

A stimulus that reduces the likelihood of the behavior that it follows.