Section_6.2_-_Homework_for_introduction_to_statistical_testing[1]

# Section_6.2_-_Homework_for_introduction_to_statistical_testing[1]

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Homework for introduction to statistical testing - section 6.2 part 1 1. Here are some published examples of statistical tests. In each example identify a. the claim (= the alternate hypothesis), b. the null hypothesis, c. the sample size, and d. Was there strong evidence for the claim? (yes or no) Notice that in published papers, the null hypothesis is not stated, but is left to the reader to figure out. A. “ We conducted a randomized, placebo-controlled trial to assess the efficacy of arthroscopic surgery of the knee in relieving pain. .. A total of 180 patients underwent randomization. ... At no point did either [surgery] group have greater pain relief than the placebo group. For example, there was no difference in knee pain between the placebo group and the lavage [surgery] group . ..at one year (mean scores 48.9 and 54.8). ..P = .14 for the comparison with the lavage group.” B. “In a randomized, double-blind clinical trial, ofloxin was superior to the placebo, with an improvement rate of 86%”

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## This note was uploaded on 09/23/2011 for the course MATH 324 taught by Professor Staff during the Spring '08 term at S.F. State.

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Section_6.2_-_Homework_for_introduction_to_statistical_testing[1]

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