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A statistics class at a university recently took a quiz. The class average was an 88,...

A statistics class at a university recently took a quiz. The class average was an 88, with a standard deviation of 9 points. Average quiz scores among all students at the University are believed to be 85. Was this class' average statistically higher than the University average? There are 30 students in the class.

In the next question you will be asked to briefly explain how you arrived at this answer!

No - it is statistically lower

No - it is higher, but not statistically higher.

There is not enough information.

Yes - it is statistically higher.
Math   Statistics-And-Probability   
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