A clinical trial is conducted comparing a new (investigational)analgesic drug to one already on the market (Tylenol) for arthritispain. Participants were randomly assigned to only one of the twotreatment groups and the outcome was self-reported pain reliefwithin 30 minutes. The 2 x 2 crosstab analysis with SPSS producedthe following results: Chi-Square Tests Value df Asymp. Sig.(2-sided) Exact Sig. (2-sided) Exact Sig. (1-sided) PearsonChi-Square 11.161a 1 .001 Continuity Correctionb 10.212 1 .001Likelihood Ratio 11.349 1 .001 Fisher's Exact Test .001 .001Linear-by-Linear Association 11.115 1 .001 N of Valid Cases 240 a.0 cells (0.0%) have expected count less than 5. The minimumexpected count is 32.50. b. Computed only for a 2x2 table Note:Footnote “a” is very important because it tells us about apotential violation of a Pearson chi-square test assumption. 25. Isthere a violation of the Pearson chi-square test assumption?
