Sample Size Planning, Calculation, and Justification

5 Use an appropriate table, formula, or software program to estimate the sample size. .Most common used statistical tests for comparing 2 groups: The t-test. The Chi-squared test. Theresa A Scott, MS (Vandy Biostatistics) Sample Size 11 / 24 Calculating sample size for analytic studies, cont’d.The t-test: Commonly used to determine whether the mean value of a continuous outcome variable in ... ................
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