A clinical psychologist posits that drug use leads to conduct problems. To test this, he examines whether his adolescent inpatient drug users were elevated in terms of conduct disorder (CD). A sample of 100 was evaluated using a standard measure of CD; they had a mean score of 53. The population mean (µ) for the CD scale is 50 with a standard deviation (σ) of 10. Show calculations for the appropriate test. a. What are the null and alternative hypotheses? b. What inferential test did you use? Using an alpha level of .05, determine whether the sample was significantly different from population.

The summary of statistics is (a) Null and the alternative hypothesis: Significance level, α=0.05…

Answered: A clinical psychologist posits that…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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A clinical psychologist posits that drug use leads to conduct problems. To test this, he examines whether his adolescent inpatient drug users were elevated in terms of conduct disorder (CD). A sample of 100 was evaluated using a standard measure of CD; they had a mean score of 53. The population mean (µ) for the CD scale is 50 with a standard deviation (σ) of 10. Show calculations for the appropriate test.

a. What are the null and alternative hypotheses?

b. What inferential test did you use? Using an alpha level of .05, determine whether the sample was significantly different from population.

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