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StatisticsQ&A LibraryIn Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We have also specified whether the test is two tailed, left tailed, or right tailed. Determine the P-value in each case and decide whether, at the 5% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. Right-tailed test: a. z = 2.03 b. z = -0.31Start your trial now! First week only $4.99!*arrow_forward*

Question

In Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We have also specified whether the test is two tailed, left tailed, or right tailed. Determine the P-value in each case and decide whether, at the 5% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis.

Right-tailed test:

**a.** z = 2.03 **b.** z = -0.31

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