(include 5 steps to answer b and c) 8. Childhood participation in sports, cultural groups, andyouth 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 ahistory of group participation is given a standardizedself-esteem questionnaire. For the general popula-tion of adolescents, scores on this questionnaire forma normal distribution with a mean of µ = 50 and astandard 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 adolescentsare significantly different from those of the generalpopulation? Use a two-tailed test with a = 05.b. Compute Cohen's d to measure the size of thedifference.c. Write a sentence describing the outcome of thehypothesis test and the measure of effect size as itwould appear in a research report.

Provided information is, sample of n=100 adolescents with history of group participation is given a…

Answered: (include 5 steps to answer b and c)

Math

Statistics

(include 5 steps to answer b and c)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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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.

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