Find two news stories reporting on the results of statistical studies with the following characteristics. First, find one that reports on a study that failed to find a relationship. Next, find one that reports on a study that did find a relationship. For each study, state what hypotheses you think the researchers were trying to test. Then explain what you think the results really imply compared with what is implied in the news reports for each study.
Answer to relevant QuestionsRefer to the previous exercise. a. What explanation might be given for the increased scores, other than the fact that the training program had an impact? b. What would have been a better way to design the study in order to ...A CNN/ ORC poll conducted in January, 2013, asked 814 adults in the United States, “ Which of the following do you think is the most pressing issue facing the country today?” and then presented seven choices, one of ...On page 565 of the article we are told that “Participants were right-handed subjects who were employees of a biotechnology corporation in Madison, Wisconsin.” To what population do you think the results of this study ...In Example 23.4, we showed that the Excel command NORMSDIST(z) gives the area below the standardized score z. Use Excel or an appropriate calculator, software, website, or table to find the p-value for each of the following ...Refer to the list of warnings on pages 527– 528. Explain which ones should be of concern if the sample size(s) for a test are large. From this discussion, you should realize that you can’t simply rely on news reports to ...
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