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 line is appropriate for these data? Why?
Answer to relevant QuestionsOne treatment for multiple myeloma (cancer of the blood and bones) is a stem cell transplant. However, in some cases the cancer returns. McCarthy and colleagues reported on a study that randomly assigned 460 patients (100 ...Morning Routine A statistics student conducted a survey to determine how much time students at her school spent getting ready to leave the house after they got up in the morning. Figure A shows a histogram of the times for ...Students in a statistics class were asked to measure their resting pulse rates. After that, the instructor unexpectedly screamed and ran from one side of the class to the other. Students again measured their pulse rates. The ...Bills Cell phone bills (rounded to the nearest dollar) for the most recent month for random samples of college men (M) and college women (F) were studied. Histograms for the numbers of dollars for men and women (A) and ...Refer to Exercise 13.35, which discussed a study on the effects of cloud seeding to produce rainfall. Some researchers think that cloud seeding has little effect on "low rain potential" clouds. Instead, they claim, most of ...
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