Fetal alcohol syndrome (FAS) is a condition that occurs when pregnant mothers consume alcohol (which limits oxygen to the fetus’ developing brain). Results of fetal alcohol syndrome can include learning impairment.

Given the following table on a study of 300 women who had children.

Learning Impaired

Unimpaired

Total

Drink during Pregnancy

24

88

112

Did not drink during pregnancy

16

172

188

Total

40

260

300

a.) Find the odds ratio for learning impairment based on drinking during pregnancy.

b.) Find a 95% confidence interval for this odds ratio. Which method did you use? Why?

c.) Are you convinced that this is the best way to present information on the risks of drinking while pregnant, why or why not?