Foofy studies if hearing an argument in favor of an
Foofy studies if hearing an argument in favor of an issue alters participants’ attitudes toward the issue one way or the other. She presents a 30-second argument to 8 people. In a national survey about this issue, µ = 50. She obtains X = 53.25 and sX = 569.86.
(a) What are H0 and Ha?
(b) What is tobt?
(c) With a = .05, what is tcrit?
(d) If appropriate, compute the confidence interval for µ.
(e) What conclusions should Foofy draw about the relationship?
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