You are shopping for a new MP3 music player such as the Apple iPod. The manufact

Question

You are shopping for a new MP3 music player such as the Apple iPod. The manufacturers advertise the number of music tracks that can be stored in the memory. Usually, the advertisers assume relatively short, popular songs to estimate the number of tracks that can be stored. You, however, like Broadway musical tunes and they are much longer. You would like to estimate how many Broadway tunes will tit on your MP3 player. Exits along interstate highways were formerly numbered successively from the western or southern border 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? b. What level of measurement are data on the milepost numbers? c. Discuss the advantages of the newer system. A poll solicits a large number of college undergraduates for information on the following variables: the name of their cell phone provider (AT&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? Barnes & Noble recently began selling an electronic book reader called the Nook Color. With this device, you can download over two million ebooks and newpapers and magazines. It displays downloaded materials in full color. Assume you know the number of Nook Color units sold each day for the last month at the Barnes & Noble store at the Market Commons Mall in Riverside. California. Describe a condition in which this information could be considered a sample. Illustrate a second situation in which the same data would be regarded as a population. Utilize the concepts of sample and population to describe how a presidential election is unlike an "exit" poll of the electorate. Place these variables in the following classification tables. For each table, summarize your observations and evaluate H the results are generally true. For example, salary is reported as a continuous quantitative variable. It is also a continuous ratio-scaled variable. a. Salary b. Gender c. Sales volume of MP3 players d. Soft drink preference e. Temperature f. SAT scores g. Student rank in class h. Rating of a finance professor i. Number of home computers

Explanation / Answer

10.

The names of the cell phone provider are not in any order of ascendence or descendence. They are categorical and hence, this variable in a nominal variable

The number of digits used last month is just continous variable.

Satisfaction with the service although categorical also means that the quality /satisafaction with the service can be ranked. like.: Terrible<Adequate<Excellent
Hence, the scale for this variable is Categorical.

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