Referring to Problem 14.41 on page 502, you have decided to analyze whether there are differences in fixed acidity, chlorides, and pH between white wines and red wines (0 = white 1 = red).

Using the data stored in RedandWhite ,

a. Develop a logistic regression model to predict whether the wine is red based on the fixed acidity, chlorides, and pH.

b. Explain the meaning of the regression coefficients in the model developed in (a).

c. Predict the probability that a wine is red if it has a fixed acidity of 7.0, chlorides of 0.04, and pH of 3.5.

d. At the 0.05 level of significance, is there evidence that the logistic regression model developed in (a) is a good fitting model?

e. At the 0.05 level of significance, is there evidence that fixed acidity, chlorides, and pH each make a significant contribution to the model?

f. What conclusions concerning the probability of a wine selected being red can you reach?