The Unit of observation in this lab is births. There were 22 variables recorded.
There are 187 smoking mothers. Of the sample size taken, \(9.38\%\) consist of smoking mothers.
Of those that are associated with the health of the baby, I chose to work with the birth defects variable because smoking can cause birth defects.The two way summary table shows that most of the smokers and non smoking mothers had babies with no birth defects.Only three smoking mothers had babies with at least 1 birth defect.