A clinical trial is conducted comparing a new (investigational) analgesic drug t

Question

A clinical trial is conducted comparing a new (investigational) analgesic drug to one already on the market (Tylenol) for arthritis pain. Participants were randomly assigned to only one of the two treatment groups and the outcome was self-reported pain relief within 30 minutes. The 2 times 2 crosstab analysis with SPSS produced the following results: a. 0 cells (0.0%) have expected count less than 5. The minimum expected count is 32.50. b. Computed only for a 2 times 2 table. Is there a violation of the Pearson chi-square test assumption? A. Yes B. No

Explanation / Answer

Explanation:

Yes, there is a violation of the Pearson Chi-square test assumption, since the software output for the given data enables us that the zero cells have expected counts less than 5.

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