If a hypothesis test using a sample of n = 16 scores produces a t statistic of t = 2.15, then the correct decision is to reject the null hypothesis for a two-tailed test with $\alpha$ = .05.

Question

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The critical value for a two-tailed test with $\alpha$ = .05 and df = 15 is 2.131. Since the t statistic (2.15) is greater than the critical value, the correct decision is to reject the null hypothesis.

If a Hypothesis Test Using a Sample of N = α\alphaα

If a Hypothesis Test Using a Sample of N = $\alpha$