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    Hypothesis testing and variation

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    12-4 The following hypotheses are given.

    A random sample of five observations from the first population resulted in a standard deviation of 12. A random sample of seven observations from the second population showed a standard deviation of 7. At the .01 significance level, is there more variation in the first population?

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    Solution Summary

    This solution performs a hypothesis test at the .01 significance level to test if there is more variation in one population versus another.