Res341 Final Essay

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1) A poll is planned to determine what proportion of all students favor an increase in fees to support a new track and field stadium. A questionnaire will be published and the first 1000 completed questionnaires will be analyzed. Which of the following errors will be associated with the sample? A. Sampling errors and errors due to selection bias B. Sampling errors only C. Errors due to interviewer bias and selection bias D. Only non-sampling errors 2) When every member of a population has the chance of being selected based on the probability, or frequency, of its representation in that population, you are using which type of sampling? A. Census sample B. Convenience sample C. Random sample D. Quota sample 3) A recent study of breast cancer revealed that 13% of the women in the sample used antibiotics more than 500 days in their lifetime. Further, 79% of these “heavy antibiotics users” developed breast cancer. According to the American Cancer Society, one in twelve women will develop breast cancer at some time in her life. Of the numbers mentioned, which are parameters? A. 13% and 79% B. 79% and one in twelve C. 13% and one in twelve D. 79% and 500 days 4) Which of the following is NOT a characteristic of an ideal statistician? A. Technically current (e.g. software) B. Can deal with imperfect information C. Communicates well (both written and oral) D. Adapts answers to client desires 5) Which of the following is an example of statistical inference? A. Counting the number of patients who file malpractice suits after being discharged from hospitals in New York State. B. Calculating the amount of fly spray needed for your orchard next season. C. Calculating the mean number of fruit trees damaged by

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