(include 5 steps to answer b and c)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
(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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1ffcf077-dbb8-4bb8-8db9-7ad786a42303%2F1947c0ac-c4ad-4ba8-a741-3dc3ba886f97%2F9zipugc_processed.png&w=3840&q=75)
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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