SCENARIO 8-2 A Quality Control Engineer Is Interested in the Mean Length

question 106

True/False

SCENARIO 8-2
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine.The desired mean length of the insulation is 12 feet.It is known that the standard deviation in the cutting length is 0.15 feet.A sample of 70 cut sheets yields a mean length of 12.14 feet.This sample will be used to obtain a 99% confidence interval for the mean length cut by machine.
-Referring to Scenario 8-2,the confidence interval is valid only if the lengths cut are normally distributed.

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Definitions:

Psychodynamic

A theoretical approach that emphasizes the influence of the unconscious mind and childhood experiences on behavior and mental states.

Freud

Sigmund Freud, an Austrian neurologist and the founder of psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.

Cognitive

Refers to processes related to thinking, knowing, remembering, and communicating.

Behavioral

Relating to or concerned with the actions or activities of living organisms towards their environment.