A Worker Was Observed for Four Cycles of a Repetitive

question 74

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?

• 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:

Critical

Expressing adverse or disapproving comments or judgments.

Unconscious Conflict

A struggle or clash of opposing impulses, desires, or tendencies within the subconscious mind.

Anxiety

A psychological and physiological state characterized by somatic, emotional, cognitive, and behavioral components of apprehension, tension, or fear.

Freud

Refers to Sigmund Freud, the founding father of psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.