1) 1. What is the statistical method used in making decisions using experimental data? a)  Simple analysis b) Hypothesis testing c) Analytical testing d) Experimental testing 2) In a one-tailed test, in which critical value listed below will the computed t value of 2.313 fall in the acceptance region? a) 1.383 b) 2.228 c) 1.533 d) 2.365 3) Using a left-tailed test, which of the following computed value of t falls in the rejection region where the critical value is – 1.725? a) – 1.700 b) – 1.715 c) – 1.723 d) – 1.728 4) 4.If the computed t-value is 2.015 and the critical value is 1.833, which of the following statements could be true? a) It lies in the rejection region, 𝐻𝑜 must be rejected. b) It lies in the rejection region, we failed to reject 𝐻𝑜. c) It lies in the non-rejection region, 𝐻𝑜 must be rejected. d) It lies in the non-rejection region, we failed to reject 𝐻𝑜. 5) When is a Type I error committed? a) We reject a null hypothesis that is false. b) We reject a null hypothesis that is true. c) We fail to reject a null hypothesis that is true. d) We fail to reject a null hypothesis that is false.

Statistics and Probability

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