Eighty Randomly Selected Students Took the Calculus Final

question 34

Multiple Choice

Eighty randomly selected students took the calculus final.If the sample mean was 76 and the standard deviation was 8.1,construct a 99% confidence interval for the mean score of all students.

• A)(71.92,80.08)
• B)(71.94,80.06)
• C)(73.49,78.51)
• D)(73.67,78.33)
• E)(73.49,80.06)

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Definitions:

Negative Reinforcer

A stimulus whose removal or avoidance following a behavior increases the likelihood of that behavior being repeated in the future.

Increases

A process or action that causes something to become larger, more numerous, or more significant.

Decreases

The act or process of becoming smaller or fewer in size, amount, intensity, or degree.

Negatively Reinforced

A process in behavioral psychology where a behavior is strengthened because a negative condition is removed or avoided.