Question

Suppose that when taking a random sample of 3 students’ GPAs, you get a sample mean...

Suppose that when taking a random sample of 3 students’ GPAs, you get a sample mean of 3.90!

This sample mean is far higher than college-wide (population) mean.

Discussion:

Does this provide that your sample is biased? Explain.

What else could have caused this high mean? Why?

Math   Statistics-And-Probability   
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Answer #1

TOPIC: Unbiasedness and Consistency of an estimator.

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