A Grocery Store Manager Is Interested in Estimating the Mean

question 122

True/False

A grocery store manager is interested in estimating the mean weight of apples received in a shipment. If she wishes to have the estimate be within ±.05 pound with 90 percent confidence, the sample size should be 103 apples if she believes that the standard deviation is .08 pound.

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Definitions:

Partial-reinforcement Effect

A phenomenon in which behaviors are more resistant to extinction when only occasionally reinforced, rather than consistently.

Continuous-reinforcement Phenomenon

A method of learning where a desired behavior is reinforced every time it occurs, leading to faster learning.

Extinction Effect

The gradual weakening and eventual disappearance of a conditioned response over time when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Effective Punishment

A consequence that successfully reduces the likelihood of a behavior being repeated, contingent on the behavior and appropriately administered.