Advanced Statistics Demystified
Offering exercises at the end of each chapter as well as two final exams, this self-teaching guide provides an effective, anxiety-soothing, and totally painless way to learn advanced statistics.
TABLE OF CONTENTS Advanced Statistics Demystified
Solutions to Chapter Exercises
Introduction
| 1. | Give the values for ? for the following rejection regions: (a) Z < -1.88; (b) Z > 2.45; (c) Z > 2.12. |
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| 2. | Give the rejection regions in terms of Z for the following ? values and research hypotheses: (a) ? = 0.075 and H a: ? > ? 0; (b) ? = 0.12 and H a: ? < ? 0; (c) ? = 0.17 and H a: ? ? ? 0. |
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| 3. | Find the p-values that are determined by the following computed test statistics and research hypotheses: (a) Z = -1.87 and H a: ? < ? 0; (b) Z = 2.45 and H a: ? > ? 0; (c) Z = -2.56 and H a: ? ? ? 0. |
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| 4. | For the following p-values and ? values, give your conclusion: (a) p-value = 0.045 and ? = 0.05; (b) p-value = 0.35 and ? = 0.10; (c) p-value = 0.001 and ? = 0.01. |
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| 5. | Fifty adult onset diabetics took part in a study. One of the questions asked was the number of planned hours of exercise per week that the diabetic participated in. The data is shown in Table I-4.
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