Posted by **Terra** on Sunday, November 15, 2009 at 10:14pm.

Suppose that the average grade for all people who take this course in statistics is 83 with a standard deviation of 3.5. If your particular class has an average of 89, can you conclude that your class is better than average at the 90 percent confidence level?

Identify one or two-tailed

States the Null and Alternative Hypothesis

States the Level of Significance

Calculates Test Statistic

Formulates Decision Rule

Makes a Conclusion

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