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The critical value for a one-tail hypothesis test when the population standard deviation is known, the sample size is 30 or more, and= 0.01 is

  1. The critical value for a one-tail hypothesis test when the population standard deviation is known, the sample size is 30 or more, and= 0.01 is ________.
    A. 2.05
    B. 2.33
    C. 2.575
    D. 2.96

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