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Chapt13 - In Class Examples Chapter 13 1 What is the design...

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In Class Examples Chapter 13 1. What is the design? Read the brief report of statistical research, and identify: a. Whether it was an observational study or an experiment If it was an observational study, identify (if possible) b. Whether it was retrospective or prospective c. The subjects studied, and how they were selected d. The parameter of interest e. The nature and scope of the conclusion the study can reach If it was an experiment, identify (if possible) b. The subjects studied c. The factor(s) in the experiment, and the number of levels for each d. The number of treatments e. The response variable measured f. The design (completely randomized, blocked or matched) g. Whether it was blind (or double-blind) h. The nature and scope of the conclusion the experiment can reach Among a group of disabled women aged 65 and older who were tracked for several years, those who had a vitamin 12 B deficiency were twice as likely to suffer severe depression as those who did not.
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