Find out the sensitivity and specificity of a common medical test. Calculate the probability of a true positive for someone who tests positive with the test, assuming the rate in the population is 1 per 100; then calculate the probability assuming the rate in the population is 1 per 1000.
Answer to relevant QuestionsAsk four friends to tell you their most amazing coincidence story. Use the material in this chapter to assess how surprising each of the stories is to you. Pick one of the stories, and try to approximate the probability of ...Find out the current minimum wage and the current Consumer Price Index. (These were available as of July, 2013, at the websites http://www.dol.gov/dol/topic/wages/ and http://www.bls.gov/cpi/, respectively.) Determine what ...In February of 1994, the Index of Leading Economic Indicators dropped slightly, and economists blamed it on unusually severe winter weather that month. Examine the 10 series that make up the Index of Leading Economic ...Suppose you want to estimate the proportion of students at your college who are left-handed. You decide to collect a random sample of 200 students and ask them which hand is dominant. Go through the conditions for which the ...Suppose the population of grade-point averages (GPAs) for students at the end of their first year at a large university has a mean of 3.1 and a standard deviation of .5. Draw a picture of the frequency curve for the mean GPA ...
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