midterm - *John i s the research assistant for a sociology...

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Unformatted text preview: *John i s the research assistant for a sociology professor at UCLA. The professor is conducting a study to compare the attitudes of male and female seniors in sociology, psychology, and computer science toward their satisfaction with the courses that they take in their major. The professor has arranged for John to have a complete list of the undergraduates in the above majors. What method of sampling should John use? stratified random *A health maintenance organization (HMO) has changed its policy regarding paying for prescription drugs. This organization serves the following areas in Los Angeles County: Westwood, Pasadena, Echo Park, Encino, Tarzana, and Glendale. In each of these areas, there are 20 doctors that work for this HMO. They want to evaluate the attitude of the patients in the 50 and older age range toward their new policy about paying for drugs. They randomly select three doctors in each of the above areas and have them administer the relevant questionnaire to their patients in the 50 and older age range. The HMO is conducting cluster sa *A national poll found that 62% of all Americans agreed that more attention should be paid to mental health of war veterans. If a simple random sample of 326 people was used to make a 95% confidence interval of (0.57,0.67), what is the margin of error? 0.05 *At a major company they want to evaluate the attitude of their employees towards a new pension policy. This company has 100,000 employees of whom 40% are female and 60% are male. Of the 40% female, 60% are staff and 40% are in research. Of the 60% male employees, 50% are staff and 50% are in research. They want to choose a and 60% are male....
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This essay was uploaded on 04/21/2008 for the course STATS 112 taught by Professor Esfandini during the Spring '08 term at UCLA.

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