chap 1-2 - Chapter 1 1 What is the level of measurement for...

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Chapter 1 1. What is the level of measurement for each of the following variables? a. Student IQ ratings. Interval-Level b. Distance students travel to class. Ratio-Level c. The jersey numbers of a sorority soccer team. Nominal-Level d. A classification of students by state of birth. Nominal-Level e. A ranking of students as freshman, sophomore, junior, and senior. Ordinal-Level f. Number of hours students study per week. Ratio-Level 9. Exits along interstate highways were formerly numbered successively from the western or southern edge of a state. However the Department of Transportation has recently changed most of them to agree with the numbers on the mile markers along the highway. a. What level of measurement were data on the consecutive exit numbers? Ordinal-Level b. What level of measurement are data on the milepost numbers? Ratio- Level c. Discuss the advantages of the newer system. One advantage of the newer system is that it provides information on the distance between the exits. 10. A review solicits a large number of college undergraduates for information on the following variables: the name of their cell phone provider (ATT&T, Verizon, and so on), the numbers of minutes used last month (200, 400, for example), and their satisfaction with the service (Terrible, Adequate, Excellent, and so forth.). What is the data scale for each of these three variables? The name of their cell phone provider is Nominal-level. The numbers of minutes used last month is Ratio-level. The satisfaction with the service is Ordinal-level.

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13. Place these variables in the following classification tables. For each table, summarize your observations and evaluate if the results are generally true. For example, salary is reported as a continuous quantitative variable. It is also a
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