By Neil A. Weiss
Weiss’s trouble-free facts, 8th version is the appropriate textbook for introductory facts periods that emphasize statistical reasoning and significant considering. complete in its insurance, Weiss’s meticulous variety bargains cautious, distinctive causes to ease the training strategy. With greater than 2,000 routines, so much utilizing genuine facts, there's a wealth of chance for college students to use their wisdom and increase statistical literacy. The textual content is appropriate for a one-semester course.
Addison Wesley | ISBN : 0321691237 | January 28, 2011 | 774 pages
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Extra info for Elementary Statistics (8th Edition)
Sample text
Does it seem reasonable to use systematic random sampling to simulate one game of keno? Explain your answer. 51 Sampling Dorm Residents. Students in the dormitories of a university in the state of New York live in clusters of four double rooms, called suites. There are 48 suites, with eight students per suite. a. Describe a cluster sampling procedure for obtaining a sample of 24 dormitory residents. b. Students typically choose friends from their classes as suitemates. With that in mind, do you think cluster sampling is a good procedure for obtaining a representative sample of dormitory residents?
2140–2150), M. Bristow et al. reported the results of a study of methods for treating patients who had advanced heart failure due to ischemic or nonischemic cardiomyopathies. A total of 1520 patients were randomly assigned in a 1:2:2 ratio to receive optimal pharmacologic therapy alone or in combination with either a pacemaker or a pacemaker– defibrillator combination. The patients were then observed until they died or were hospitalized for any cause. 22 Starting Salaries. The National Association of Colleges and Employers (NACE) compiles information on salary offers to new college graduates and publishes the results in Salary Survey.
12, classify each of the studies as either descriptive or inferential. Explain your answers. 7 TV Viewing Times. The Nielsen Company collects and publishes information on the television viewing habits of Americans. Data from a sample of Americans yielded the following estimates of average TV viewing time per month for all Americans 2 years old and older. The times are in hours and minutes (NA, not available). 8 Professional Athlete Salaries. In the Statistical Abstract of the United States, average professional athletes’ salaries in baseball, basketball, and football were compiled and compared for the years 1995 and 2005.