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    Z-score, Critical Values, Hypothesis

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    1. Population blood pressure (BP) of patients is normally distributed, with a mean of 127, and standard deviation of 8. A random sample of 49 patients in the hospital found an average BP of 125. Find the z score
    test value, list the critical values (alpha = 5%), and indicate the hypothesis test results for a
    a) one-tailed (right)

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    Solution Preview

    mu = 127, sigma = 8, x-bar = 125, n = 49

    Ho: mu <= 127 vs Ha: mu > 127

    Critical right-tail z- ...

    Solution Summary

    A complete, neat and step-by-step solution is provided with regards to statistical problems relating to population blood pressure.