In a Manufacturing Process, a Random Sample of 9 Manufactured

question 109

Multiple Choice

In a manufacturing process, a random sample of 9 manufactured bolts has a mean length of 3 inches with a variance of .09 and is normally distributed. What is the 90 percent confidence interval for the true mean length of the manufactured bolt?

• A) 2.8355 to 3.1645
• B) 2.5065 to 3.4935
• C) 2.4420 to 3.5580
• D) 2.8140 to 3.1860
• E) 2.9442 to 3.0558

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Definitions:

Ambiguous Situations

Scenarios that lack clarity and can be interpreted in multiple ways.

Satisficing

A decision-making strategy that aims for a satisfactory or adequate result, rather than the optimal solution.

Satisfactory Alternative

An option that fulfills the requirements or needs to an acceptable degree, though it may not be the best possible choice.

Ethics

A set of moral principles or values that govern an individual's or group's behavior, distinguishing between what is right and wrong.