j Adjusted for confounding variables, the difference between the change in the mean for the behavioral counseling

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j Adjusted for confounding variables, the difference between the change in the mean for the behavioral counseling group and the nutrition counseling group was 0.62. Report and interpret the 95% confidence interval for the true difference and report the P-value for testing that the difference was 0.

Were the groups in this analysis independent or dependent samples?

Medical research makes frequent use of statistical methods shown in this chapter. At British Medical Journal (BMJ) bmj.
com on the Internet, pull up the April 19, 2003, issue. Browse through the article titled “Behavioural counseling to increase consumption of fruit and vegetables in low income adults:
randomized trial” by A. Steptoe et al. You will see a variety of statistical analyses used.

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292164878

4th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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