A Sociologist Develops a Test to Measure Attitudes Towards Public $76.2 \pm 0.91$

question 46

Multiple Choice

A sociologist develops a test to measure attitudes towards public transportation, and 47 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4.
Construct an approximate 95% confidence interval for the mean score of all such subjects.

• A) \(76.2 \pm 0.91\)
• B) \(76.2 \pm 6.87\)
• C) \(76.2 \pm 6.24\)
• D) \(76.2 \pm 3.12\)

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Definitions:

Discount Lost

The additional expense a company incurs when it fails to take advantage of the payment terms offered by suppliers, like missing early payment discounts.

Gross Method

Accounting treatment for purchase discounts where discounts are not considered until actually taken.

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A promissory note from the maker’s point of view.

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The accumulation of interest on a loan or bond that has been earned but not yet paid.