Whathappens to sample size as you read across a row (i.e. as statistical power changes)? Whathappens as you read down a column (i.e. as effect sizes change)?

HSCI 6263 Biostatistics for Clinical and Translational Research 2) Carry over the effect sizes that you calculated in Table 2.1 and put them in the first column 3 4 ~ of Table 2.2 (below). Calculate the sample size estimations for each effect size and level of statistical power. Fill in the results accordingly. ANSWER: Table 2.2: Sample size estimations for two-group comparison* Statistical Power Effect Size 80% 85% 90% 95% 0 -SWO WI St w2 11 0. 6% 3 35 =\" a - O55 oye 3\\ Blo 44 0-310 22 25 2 ay Ooa1bl \\e 20 24 29 ee * Numbers within each cell represent the sample size per group Refer to Table 2.2 and describe what patterns you see in the sample size values. What happens to sample size as you read across a row (i.e. as statistical power changes)? What happens as you read down a column (i.e. as effect sizes change)? Choose two cells from Table 2.2 (from two different columns and two different rows) and interpret those values. Remember that the purpose of this power analysis is to provide an estimate for the sample size of the study. So in your interpretation, it is the number in the cell that reflects how many people would need to be recruited per group given the power and the effect size (column and row respectively)