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    Statistics - Null & Alternative Hypothesis - Critical Values

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    Identifying H0and Hr in ex 5-12 , examine the given statement , then express the null hypothesis H0 and alternative hypothesis H1 in symbolic form.

    6. The mean IQ of statistics students is at least 110.
    8. The percentage of men who watch golf on tv is not 70%, as is claimed by the Madison Advertising Company.

    Finding Critical Values. In Exercises 13-20 , find the critical z values. In each case ,assume that the normal distribution applies.

    14. Two-tailed test: alpha = 0.01
    16. Left-tailed test; alpha=0.05

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    Solution Summary

    The null and alternative hypothesis for critical values. A complete and neat solutions are provided.