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 representative study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general population of adolescents scores on this questionnaire form a normal distribution with a mean of ?= 50and a standard deviation of ?=15. the sample group-participation adolescents had an average of M=53.8.A) Does the sample provide enough evidence to conclude that self-esteem scores for those adolescents are significantly different from those of the general population? Use the two tailed test with a= .05 B)Comput cohens d to measure the size of the difference. C) write a sentance describing the outcome of the hypothesis test and the measure of the effect size as it would appear in a research report.
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 representative study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general population of adolescents scores on this questionnaire form a
B)Comput cohens d to measure the size of the difference.
C) write a sentance describing the outcome of the hypothesis test and the measure of the effect size as it would appear in a research report.
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