7.55 What is wrong? In each of the following situations,identify what is wrong and then either explain why itis wrong or change the wording of the statement to makeit true.(a) A researcher wants to test Ho: x₁= x₂ versus the two-sided alternative Ha: X₁ X₂.(b) A study recorded the IQ scores of 100 collegefreshmen. The scores of the 56 males in the study werecompared with the scores of all 100 freshmen using thetwo-sample methods of this section.(c) A two-sample t statistic gave a P-value of 0.94.From this, we can reject the null hypothesis with 90%confidence.(d) A researcher is interested in testing the one-sidedalternative Ha: ₁ <₂. The significance test gave t = 2.15.Because the P-value for the two-sided alternative is 0.036,he concluded that his P-value was 0.018.

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Answered: (a) A researcher wants to test Ho: 1 =…

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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