Transcription of APPENDIX D: Answers to Selected Exercises
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APPENDIX D: Answers to Selected Exercises
Chapter 1, Section A: Basic Exercises 2. (a) and (c) 3. False 4. The distribution of a variable, the sampling distri-bution of means. and the test statistic 5. People act in accordance with others expectations. Experi ments are based on pre-experimental obser-vations, we must distinguish between samples and populations, and we must be able to deal with inconsistent data. 6. A sample is a subset of the population of interest. A popu lation is all the members of the group that we are interested in. 7. Sample; my interest is in all UNLV students. 8. Population; my interest is in this class itself. 9. (a) 19 (b) 19 (c) 58 (d) 231 10. (a) 8/36 = .22 (b) 4/36 = .11 11. (a) 1/365 = .003 (b) 31/365 = .085 (c) 28/365 = .077 (d) 52/365 = .142 (e) 53/365 = .14512. (a) 4/52 = 1/13 = .08 (b) 4/12 = 1/3 = .33 (c) 1/13 = .08 Chapter 2, Section A: Basic Exercises 2. (a) Interval/ratio (b) Ordinal (c) Nominal (d) Ordinal (e) Nominal (f) Interval/ratio 3. (a) Continuous (b) Discrete (c) Discrete (d) Continuous 4.
578 Appendix D Answers to Selected Exercises 10. Unimodal, symmetric 2 3 4 f Length of Grass (in.) – – ...
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