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# Logistic Regression

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Use R, Minitab if possible

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Problem 13.3. Use table 13.1.

(a) Calculate the logit line for X2 = 0, X3 = 1, and X5 = 1. Plot logit(Pibar) vs. age in years.

(b) Plot (Pibar) vs. age in years for part (a).

(c) What is the probability of death for a 60-year-old patient with no evidence of shock, but with symptoms of alcoholism and prior bowel infarction?

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#### Solution Preview

Problem 13.3 Use table 13.1 shown below.

(a) Calculate the logit line for X2 = 0, X3 = 1, and X5 = 1.
(b) Plot (Pibar) vs. age in years for part (a).

(c) What is the probability of death for a 60-year-old patient with no evidence of
shock, but with symptoms of alcoholism and prior bowel infarction?

Note:
1. shock, malnutrition, alcoholism, age, and bowel infarction werelabeled X1, X2, X3, X4, and X5, respectively.

2. The four variables X1, X2, X3, and X5 were binary variables, ...

#### Solution Summary

The solution provides step by step method for the calculation of logistic regression analysis in Minitab. Formula for the calculation and Interpretations of the results are also included.

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