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(include 5 steps to answer b and c)

(include 5 steps to answer b and c)

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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(include 5 steps to answer b and c)

 

8. Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self- esteem for adolescents (McGee, Williams, Howden- Chapman, Martin, & Kawachi, 2006). In a representa- tive study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general popula- tion of adolescents, scores on this questionnaire form a normal distribution with a mean of µ = 50 and a standard deviation of o = 15. The sample of group- participation adolescents had an average of M = 53.8. a. Does this sample provide enough evidence to con- clude that self-esteem scores for these adolescents are significantly different from those of the general population? Use a two-tailed test with a = 05. b. Compute Cohen's d to measure the size of the difference. c. Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research report.
Transcribed Image Text:8. Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self- esteem for adolescents (McGee, Williams, Howden- Chapman, Martin, & Kawachi, 2006). In a representa- tive study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general popula- tion of adolescents, scores on this questionnaire form a normal distribution with a mean of µ = 50 and a standard deviation of o = 15. The sample of group- participation adolescents had an average of M = 53.8. a. Does this sample provide enough evidence to con- clude that self-esteem scores for these adolescents are significantly different from those of the general population? Use a two-tailed test with a = 05. b. Compute Cohen's d to measure the size of the difference. c. Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research report.
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