How Many Observations Would Be Necessary for a Time Studies

question 21

Essay

How many observations would be necessary for a time studies analyst to be 99% confident that the average time is within ± .1 minutes of the true value,if the average time is 10.5 minutes and the standard deviation is 3 minutes?

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Definitions:

Unconditioned Response

An automatic, innate reaction to a stimulus that occurs without prior conditioning or learning.

Negatively Reinforced

A behavior strengthened because a negative condition is removed or avoided as a consequence of the behavior.

Positively Punished

The addition of an unpleasant stimulus in response to a behavior, resulting in a decrease in the likelihood of that behavior being repeated.

Negatively Punished

A term in behavioral psychology referring to the decrease in the frequency of a behavior due to the removal of a pleasant stimulus following the behavior.