Chap001

# Chap001 - values within some range. Examples will vary. 14....

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C HAPTER 1 W HAT IS S TATISTICS ? 1. a. Interval b. Ratio c. Interval d. Nominal e. Ordinal f. Ratio 2. a. Ratio b. Nominal c. Ratio d. Ratio 3. Answers will vary 4. a. Sample b. Population c. Population d. Sample 5. Qualitative data is not numerical, whereas quantitative data is numerical. Examples will vary by student. 6. A population is the entire group which you are studying. A sample is a subset taken from a population. 7. Nominal, ordinal, interval, and ratio. Examples will vary. 8. Classes are mutually exclusive if an object is included in only one class. 9. A classification is exhaustive if every object appears in some category. 10. Answers will vary 11. As a result of these sample findings, we can conclude that 120/300 or 40 percent of the white- collar workers would transfer outside the U.S. 12. The obvious majority of consumers tested (400/500, or 80%) believe the policy is fair. On the strength of these findings, we can anticipate a similar proportion of all customers to feel the same. 13. Discrete variables can assume only certain values, but continuous variables can assume any

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Unformatted text preview: values within some range. Examples will vary. 14. Sales of manufactured homes doubled from 1990 to 1997. Then they retreated to 1990 levels by 2001. Chapter 1 6 15. Answers will vary. 16. a. Township is qualitative variable, the others are quantitative. b. Township is nominal level variable, the others are ratio level variables. 17. a. Grass or turf field is a qualitative variable, the others are quantitative. b. Grass or turf field is a nominal level variable, the others are ratio level variables. 18. a. Wage, education, experience, and age are quantitative variables. The others are qualitative. b. Wage, education, experience, and age are ratio level variables. The others are nominal. 19. a. G-20 and petroleum are qualitative variables. The others are quantitative. b. G-20 and petroleum are nominal level. The other variables are ratio. Chapter 1 7...
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## Chap001 - values within some range. Examples will vary. 14....

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