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    Hypothesis Test

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    Suppose that a company claims that 67% of their employees (about 2/3) buy annual parking permits for parking at their workplace. A random survey of 120 employees finds that 62 of them have annual parking permits.

    Given that the pair of hypotheses that correspond to the claim are as follows:

    H0: p = 0.67
    H1: p # 0.67

    Find the critical values for the hypothesis test. Assume that the significance level is a=0.01

    Answer: z = ± ________________

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