A theater arts department enlisted the help of a social psychology professor to design a study to see if being surrounded by highly attractive people affected the performance of young actors.Thirty student actors were randomly assigned to act a particular scene under one of two conditions: For 13 of the actors,the other performers were dressed and made up to look very attractive; for the other 17 actors,the other performers were dressed and made up to look very unattractive.A panel of judges rated the performance of the two groups,and the mean performance ratings for the actors with attractive co-performers was 4.3 (S = .86)and with unattractive co-performers,the mean was 5.4 (S = 1.30).Using the .05 significance level,did acting with attractive co-performers affect performance?
a.Use the five steps of hypothesis testing.
b.Sketch the distributions involved.
c.Figure the effect size.
d.Explain the logic of what you did to a person who is familiar with the t test for a single sample,but who is unfamiliar with the t test for independent means.Be sure you explain how this problem differs from a t test for a single sample.Your answer should consist mainly of a thorough explanation of the characteristics of the comparison distribution and the logic of all the steps of figuring you did to determine those characteristics.

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The Answer of A theater arts department enlisted the help of a social psychology professor to design a study to see if being surrounded by highly attractive people affected the performance of young actors.Thirty student actors were randomly assigned to act a particular scene under one of two conditions: For 13 of the actors,the other performers were dressed and made up to look very attractive; for the other 17 actors,the other performers were dressed and made up to look very unattractive.A panel of judges rated the performance of the two groups,and the mean performance ratings for the actors with attractive co-performers was 4.3 (S = .86)and with unattractive co-performers,the mean was 5.4 (S = 1.30).Using the .05 significance level,did acting with attractive co-performers affect performance?
a.Use the five steps of hypothesis testing.
b.Sketch the distributions involved.
c.Figure the effect size.
d.Explain the logic of what you did to a person who is familiar with the t test for a single sample,but who is unfamiliar with the t test for independent means.Be sure you explain how this problem differs from a t test for a single sample.Your answer should consist mainly of a thorough explanation of the characteristics of the comparison distribution and the logic of all the steps of figuring you did to determine those characteristics.

A Theater Arts Department Enlisted the Help of a Social