Stats 10 Quiz #5b

# Stats 10 Quiz #5b - 1 Which of the following statements...

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1. Which of the following statements best describes the effect on the Binomial Probability Model if the number of trials is held constant and p (the probability of "success") increases? a. None of these statements are true b. The mean and standard deviation both decrease c. The mean and the standard deviation both increase d. The mean increases and the standard deviation decreases e. The mean decreases and the standard deviation increases 2. Harvey learned that his standardized z-score on a college placement exam, compared to others who took the same test, was 1.25. Which of the following best describes how to interpret Harvey’s score a. Harvey scored 1.25 points above the mean for all students taking the exam b. Only 12.5% of the students taking the exam did as well as Harvey c. Harvey's score is 1.25 standard deviation above the mean for all students taking the exam d. Harvey's score is 1.25 times the mean for all students taking the exam e. Harvey scored 125 points 3. In April 2003, Science magazine reported on a new computer-based test for ovarian cancer, “clinical proteomics,” that examines a blood sample for the presence of certain patterns of proteins. Ovarian cancer, though dangerous, is very rare, afflicting only 1 in every 5000 women. The test is highly sensitive, able to correctly detect the presence of ovarian cancer in 99.97% of

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Stats 10 Quiz #5b - 1 Which of the following statements...

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