Correction to Appendix D: Self-Test solutions and Answers to Even-Numbered Exercises Chapter 1 Updated solution to Exercise 4 4. a. There are eight elements in this data set; each element corresponds to one of the eight models of cordless telephones b. Categorical variables: Voice Quality and Handset on Base Quantitative variables: Price, Overall Score, and Talk Time c. Price – ratio measurement Overall Score – interval measurement Voice Quality – ordinal measurement Handset on Base – nominal measurement Talk Time – ratio measurement
Correction to Appendix D: Self-Test solutions and Answers to Even-Numbered Exercises Chapter 1 Updated solution to Exercise 4 4. a. There are eight elements in this data set; each element corresponds to one of the eight models of cordless telephones b. Categorical variables: Voice Quality and Handset on Base Quantitative variables: Price, Overall Score, and Talk Time c. Price – ratio measurement Overall Score – interval measurement Voice Quality – ordinal measurement Handset on Base – nominal measurement Talk Time – ratio measurement
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