Unformatted text preview: subscribers. Fifty-nine percent of the respondents indicated an annual income of $75,000 or more and 50% reported having an American Ex-press credit card. (a) What is the population of interest in this study? (b) Is annual income a qualitative or quantitative variable? (c) Does this study involve cross-sectional or time series data? (d) Describe any statistical inferences Business Week might make on the basis of the survey. 1...
View Full Document
- Fall '10
- Statistics, unemployment rates, higher crime rates, higher unemployment rates