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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

  • Statistics -

    See your later posting. Please do not do multiple posts of the same question. It will not get you a quicker answer. It also wastes our time in responding to the multiple posts. Thank you.

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