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The value obtained for the test statistic, z, in a one-mean z-test is given. Whether the test is two tailed, left tailed, or right tailed is also specified. For parts (a) and (b), determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. a. The test statistic in a left-tailed test is z = -0.85. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level. b. The test statistic in a left-tailed test is z=0.51. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level.

The value obtained for the test statistic, z, in a one-mean z-test is given. Whether the test is two tailed, left tailed, or right tailed is also specified. For parts (a) and (b), determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. a. The test statistic in a left-tailed test is z = -0.85. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level. b. The test statistic in a left-tailed test is z=0.51. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The value obtained for the test statistic, z, in a one-mean z-test is given. Whether the test is two tailed, left tailed, or right tailed is also specified. For parts (a) and (b), determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. a. The test statistic in a left-tailed test is z = -0.85. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level. b. The test statistic in a left-tailed test is z = 0.51. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level.
Transcribed Image Text:The value obtained for the test statistic, z, in a one-mean z-test is given. Whether the test is two tailed, left tailed, or right tailed is also specified. For parts (a) and (b), determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. a. The test statistic in a left-tailed test is z = -0.85. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level. b. The test statistic in a left-tailed test is z = 0.51. The P-value is (Round to three decimal places as needed.) At the 1% significance level, the data sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because the obtained P-value is the significance level.
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