A Machine Has Been Designed to Make Nails Which Are

question 161

Multiple Choice

A machine has been designed to make nails which are 8cm long with a standard deviation of 0.15cm. A sample of 48 nails is selected periodically to assess if the length is too variable from the standard of 8cm. From the sample of 48 nails, the mean is found to be 7.983cm. Assume the lengths are normally distributed.
-The test statistic is _____.

• A)-0.785
• B)-1.57
• C)-3.04
• D)1.57
• E)0.785

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Definitions:

Generous Person

An individual known for giving more of something, especially money or time, than is strictly necessary or expected.

False Consensus Hypothesis

The tendency to overestimate the extent to which others share our beliefs, attitudes, and behaviors.

Fundamental Attribution Error

A cognitive bias in social psychology where people underestimate situational influences and overestimate dispositional influences on others' behavior.

Save Face

The act of striving to maintain one's dignity, honor, or reputation in the face of embarrassment or shame.