Answer Happy

Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem _First, what is the standard error of the mean (SEM)? for adolescents (McGee, Williams, Howden- \begin{tabular}{ll} Chapman, Martin, \& Kawachi, 2006). For & 0.35 \\ the general population of adolescents, scores on this & 12 \\ questionnaire form a normal distribution with a mean of & 0.12 \\ μ=40 and a standard deviation of σ=12. & 0.83 \\ \hline \end{tabular} You collect a sample of group-participation adolescents with N=100 and find their score is an average of M= 42.11. Does this sample provide enough evidence to conclude that self-esteem scores Second, what is the 2 iscore for the sample? for these adolescents are significantly higher than those of the general population? Use a one-tailed test with a=.01.