Chapter 26, Problem 21E

To determine

To explain why it would not be appropriate to use chi-square methods on the $2\times 8$ table.

Answer to Problem 21E

The variables in the column are not mutually exclusive.

Explanation of Solution

Given:

  

There will be three more variables added in the table like alcohol use, first child and breast feeding. Therefore, total number of variables would be 4. Therefore, the condition of Independence would not satisfy because the variables in the column are not mutually exclusive.