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Homework 8

# Homework 8 - HW 8 Page 1 of 2 Homework 8 ODDS RATIOS...

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HW 8 Page 1 of 2 Homework 8. ODDS RATIOS Conduct data analyses 1. Use the online calculator at http://statpages.org/ctab2x2.html to conduct odds ratio analyses for the following sets of variables: PHYS/MENTHLTH2 by (a) SLEEP2, (b) CHECKUP2, (c) SMOKER, and (d) EXERCISE How to conduct odds ratio analyses using the online calculator at http://statpages.org/ctab2x2.html INSERT THE CORRECT VALUES IN THE OBSERVED CONTINGENCY TABLE Observed Contingency Table Outcome Occurred Outcome did not Occur Totals Risk Factor Present or Dx Test Positive = a = b = r1 Risk Factor Absent or Dx Test Negative = c = d = r2 Totals = c1 Confidence Level: 95 % Compute o From the output in HW 7 (whether from Excel or SOFA), PUT THE RIGHT NUMBERS IN THE RIGHT CELLS Outcome occurred: PHYS/MENTHLTH2=1; Outcome did not occur: PHYS/MENTHLTH2=2 Risk factor present: Sleep=30 days; checkup=within the last year; smoker=no; exercise=yes o Make sure “Confidence Level” = 95 o Then hit “Compute” o

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Homework 8 - HW 8 Page 1 of 2 Homework 8 ODDS RATIOS...

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