A clinical trial is studying the response of 2 independent groups. If numeric scales are used, which of the following would be the preferred mode of statistical analysis?

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When studying 2 groups, the paired t-tests would be appropriate. ANOVA (analysis of variance between groups) would be the preferred test for numerical data with 3 or more groups. Mann-Whitney is a non-parametric test, and chi-square tests are used on nominal (coded) data.

A Clinical Trial Is Studying the Response of 2 Independent