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Test whether the significant different between the experiment using the t-test.

1. A researcher conducts an experiment comparing two treatment conditions and obtains data with 10 scores for each treatment condition.
a. If the researcher used an independent-measures design, how many subjects participated in the experiment?
b. If the researcher used a repeated-measures design, how many subjects participated in the experiment.
c. If the researcher used a matched-subjects design, how a lot of subjects participated in the experiment?
2. A sample of difference scores from a repeated measures experiment has a mean of M_D = 5 and a variance of S^2 = 64.
a. If n = 4, is this sample sufficient to reject the null hypothesis using a two-tailed test with ∝ = .05?
b. Would you reject Ho if n = 16? Again, suppose a two-tailed test with ∝ = .05.

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