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HW 2 - Rachel Baker BIOS 600 001 HW#2 Probability Models...

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Rachel Baker BIOS 600 001 2/2/10 HW #2: Probability Models and their Applications in Public Health Problem 1 (i) 2X2 Contingency Table The FREQ Procedure Table of TRT by STATUS TRT(Treatment) STATUS(Vital status) Frequency‚ Percent Row Pct Col Pct ‚Alive ‚Died Total ƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒˆ Placebo 13099 ‚ 290 ‚ 13389 48.30 ‚ 1.07 ‚ 49.37 97.83 ‚ 2.17 ‚ 49.25 ‚ 55.45 ‚ ƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒˆ Vit A 13499 ‚ 233 ‚ 13732 49.77 ‚ 0.86 ‚ 50.63 98.30 ‚ 1.70 ‚ 50.75 ‚ 44.55 ‚ ƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒˆ Total 26598 523 27121 98.07 1.93 100.00 Rate of child mortality: children receiving PLACEBO = 290 / 13389 = 2.17 % of the children receiving a placebo in Nepal died Rate of child mortality: children receiving VITAMIN A = 233 / 13732 = 1.70 % of the children receiving Vitamin A in Nepal died Children in Nepal who received Vitamin A had a 0.47% greater probability of living as compared to children who received a placebo.
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