Answered: . Under what conditions would a…

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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Problem Set #6 due on 11/1/2020 1. Under what conditions would a researcher choose to use a t-test for independent samples? 2. A researcher is testing a two-tailed null hypothesis at the p < .01 level with df = 48. What critical value would she or he use? Justify your answer. 3. A researcher is testing a two-tailed null hypothesis at the p < .01 level with df = 45. What critical value would she or he use? Justify your answer. 4. What is the simplest way to compute an effect size? 5. If the number of participants in Group 1 = 54 and the number in Group 2 = 58, what is the associated degrees of freedom? 6. If the obtained t value is 7.14, and the critical value is 6.10, what decision should be made? 7. What does the number 58 represent in the following: t(58) = 2.001, p < 0.05? 8. What does the number 0.05 represent in the following: t(58) = 2.001, p < 0.05? 9. How many groups are involved in the t test for independent samples? 10. What is the most common level of significance used in testing in the social sciences?

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