Refer to Exercise 12.45. How could you find out whether iron caused the higher death rates associated in this study with its use? Describe the design of a study assuming you had 200 women to work with. Assume that you do not have to study the women for 19 years but, rather, will look at them for a much shorter time period, perhaps one or two years.
Answer to relevant QuestionsRefer to Exercise 12.46. How could you find out whether calcium caused the lower death rates associated in this study with its use? Describe the design of a study assuming you had 300 women to work with. Assume that you do ...The 3-year recidivism rate in Texas is about 30%, which means that 30% of released Texas prisoners return to prison within 3 years of release. There have been many attempts to reduce the recidivism rate. Suppose you want to ...Using the information from Exercise 12.4, write two headlines announcing the results of the study. Make one of the headlines imply causality, and make the other one not imply causality. Explain which is which. Which head ...A Nielsen Poll asked people the number of hours of television they watched in the last week. Assume that Nielsen obtained a random sample. We are analyzing the data for the 39 college students in the sample. The figure shows ...A researcher was interested in the ethics of eating meat, so he studied and compared ethicists (philosophy professors who taught ethics) with professors who taught other subjects to find out whether ethicists eat less meat. ...
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