hildhood participation in sports appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of n = 100 adolescents with a history of sportsparticipation is given a standardized self-esteemquestionnaire. For the general population of adolescents, scores on this questionnaire form a normal distribution with a mean of μ = 50 and a standard deviation of σ = 15. This sample of adolescentshad an average of M = 53.8.a.Does this sample provide enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population? Use a two-tailed test with α = .01. b.Can the researcher conclude that the childhood participationin sportswill significantly increase adolescents’ self-esteem? Use a one-tailed test with α = .05.
Childhood participation in sports appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of n = 100 adolescents with a history of sportsparticipation is given a standardized self-esteemquestionnaire. For the general population of adolescents, scores on this questionnaire form a
b.Can the researcher conclude that the childhood participationin sportswill significantly increase adolescents’ self-esteem? Use a one-tailed test with α = .05.
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