Q 4.18: A new material was tested to determine a correlation between external influence and stress in the material. The null hypothesis was Ho: p = 0. The alternative hypothesis was Ha: p + 0. The first test gave a significant result with the level of significance a = 0. 05. Then this test was repeated with a larger sample size at the same level of significance a = 0. 05. The second test gave the same value of the correlation as the first test. What can we say about the conclusion of the second test? A We cannot determine whether or not we should reject the null hypothesis, since the p-value is larger for the second test. We cannot determine whether or not we should reject the null hypothesis, since we cannot estimate the p-value for the second test. We reject the null hypothesis at a 5% level, since the p-value is larger for the second test. We reject the null hypothesis at a 5% level, since the p-value is smaller for the second test. E We cannot determine whether or not we should reject the null hypothesis, since the p-value is smaller for the second test.

Q 4.18: A new material was tested to determine a correlation between external influence and stress in the material. The null hypothesis was Ho: p = 0. The alternative hypothesis was Ha: p + 0. The first test gave a significant result with the level of significance a = 0. 05. Then this test was repeated with a larger sample size at the same level of significance a = 0. 05. The second test gave the same value of the correlation as the first test. What can we say about the conclusion of the second test? A We cannot determine whether or not we should reject the null hypothesis, since the p-value is larger for the second test. We cannot determine whether or not we should reject the null hypothesis, since we cannot estimate the p-value for the second test. We reject the null hypothesis at a 5% level, since the p-value is larger for the second test. We reject the null hypothesis at a 5% level, since the p-value is smaller for the second test. E We cannot determine whether or not we should reject the null hypothesis, since the p-value is smaller for the second test.

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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