Sample Prompting Questions/Topics for Circles

To have 80% power of detecting this difference (at 5% significance level, two-tailed) she would need N = 16 (0.60)(1 – 0.60) / (0.50 – 0.70)2 = 96 per group. That is, she should plan to visit 100 families and have another 100 families in the control group. Calculator example to do this same thing: These screencaptures are from: ................
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