An Operator Wants to Determine the Standard Deviation for a Machine

question 1

Multiple Choice

An operator wants to determine the standard deviation for a machine she operates. To do this, she wants to create a p-chart. Over a month's time, she collects 30 samples of 75 observations each and records the number of errors. The average proportion defective is found to be 0.024. Which of the following is the standard deviation ( ) of the machine?

• A) Less than or equal to 0.1
• B) More than 0.1 but less than or equal to 0.5
• C) More than 0.5 but less than or equal to 1.0
• D) More than 1.0

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Definitions:

Free Association

A psychoanalytic technique in which a patient says whatever comes to mind without censorship, used to uncover subconscious thoughts and feelings.

Psychoanalytic

A therapeutic approach and theory of personality development that emphasizes unconscious motives and conflicts, originally developed by Sigmund Freud.

Active Listening

A communication technique that involves giving full attention to the speaker and providing feedback to confirm understanding.

Rapidly Moving

Describes something happening or progressing quickly or at a fast pace.