A Worker Was Observed for Four Cycles of a Repetitive

question 83

Multiple Choice

A worker was observed for four cycles of a repetitive operation.The observed times for work elements are 11,10,8,and 11 seconds,respectively.What sample size is appropriate for estimating the time for this work element within + 3 percent of the true mean time with 95 percent confidence (z = 1.96) ?

• A)fewer than or equal to 70
• B)greater than 70 but fewer than or equal to 75
• C)greater than 75 but fewer than or equal to 80
• D)greater than 80

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Definitions:

Defense Mechanism

Unconscious psychological mechanisms that reduce anxiety arising from unacceptable or potentially harmful stimuli.

Sublimation

Channeling socially unacceptable impulses and urges into socially acceptable behavior.

Superego

One of the three components of the human psyche in Freudian psychoanalytic theory, representing the internalized societal standards of morality and ethics.

Metaphor

A figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.