Determine which level of measurement— nominal, ordinal, interval, or ratio—is used in the following examples. The Association of Accountants is conducting a survey to determine the ranking of the top 100 accounting firms in the world. Ordinal How many years did it take you to earn your college degree? Ratio On a questionnaire which asks for gender, males are coded as 1 and females are coded as 2. Interval Respondents are asked to rate a list of high-tech companies as excellent, good, fair, or poor in terms of their service delivery. Ordinal Cereal brands are arranged in an ordered sequence in which an equal interval exists between each point. Interval LeBron James wears the number 23 on his jersey. Nominal
The length of time it takes the winner of a marathon to cross the finish line. Ratio Students are asked to rank computer manufacturers. Interval
The brand of charge card used by a customer. Nominal
The pin number used to access your checking account. Nominal Which sampling method—simple random, systematic, stratified, cluster, convenience, judgment, quota, or snowball—is most appropriate for the following examples? • The unemployment rate is calculated each month by the U.S. Bureau of Labor Statistics. The survey consists of 50,000 households in about 2,000 counties and cities in all 50 states. Simple Random A researcher for Kraft Foods selects five states randomly, and then selects 10 supermarkets chains within each state to call for a phone survey as test markets for a new cookie. Quota A new product researcher would like to investigate the use of virtual teams. After conducting an interview with a manager, she asks for the names of other managers that use virtual teams. Convenience A news reporter asks people on the street their opinion about the president’s new bill. Snowball Jamie select Denver, Colorado; Chicago, Illinois; and San Diego, California as test markets for a new potato chip line base on her experience with these markets. Judgment A...
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