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:

Humanist

A person who adopts a philosophical stance emphasizing the value and agency of human beings, individually and collectively.

Human Nature

The inherent characteristics, including ways of thinking, feeling, and acting, that all humans are believed to share.

Underlying Assumptions

Fundamental beliefs or ideas that are taken for granted and support the framework of a theory, argument, or system of thought.

Either-or Thinking

A cognitive distortion that simplifies complex situations into a binary choice, ignoring the nuances and middle ground.