Question: Below are the output from a binary logistic regression analysis where the dependent Variable Survived coded as 1 for Survived and 0 for Not Survived

Below are the output from a binary logistic regression analysis where the dependent Variable Survived coded as 1 for Survived and 0 for Not Survived and independent Variables: Age, Fare, Sex. c) Review Part B output and interpret odds ratios for the variables. d) Review Part C output and comment on the classification accuracy of the model.

Dependent Variable: Survived 1- Survived and 0 - Not Survived
Independent Variables: Age, Fare, Sex

Part A:

Chi-sq: 13.55; df: 3; p-value: 0.003 and alpha: 0.05

Part B:

coeff b s.e. Wald p-value exp(b) lower upper
Intercept -2.71 1.4 3.76 0.05 0.07
Age 0.05 0.04 1.64 0.2 1.05 0.97 1.14
Fare 0 0.02 0.09 0.77 1 0.96 1.03
Sex 2.95 1.01 8.58 0.00 19.19 2.66 138.52

Lower and upper columns are 95% confidence limits for the odds ratios exp(b).

Part C:

Suc-Obs Fail-Obs Total
Suc-Pred 12 3 15
Fail-Pred 3 12 15
Total 15 15 30

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