A Researcher Predicts That Scores in Treatment a Will Be

Multiple Choice

A researcher predicts that scores in treatment A will be higher than scores in treatment B.If the mean for the 10 participants in treatment A is 4 points higher than the mean for the 10 participants in treatment B and the data produce t = 2.095,what decision should be made?

A) With α = .05, reject H0 for both a one-tailed and a two-tailed test
B) With α = .05, fail to reject H0 for both a one-tailed and a two-tailed test
C) With α = .05, reject H0 for a one-tailed test but fail to reject for a two-tailed test
D) With α = .05, reject H0 for a two-tailed test but fail to reject for a one-tailed test