Statistics: Z-test: Testing hypotheses – #29534

Question: A researcher sampled 100 women from a medical record database and identified their smoking status and parity. Use the 5 steps of hypothesis testing to determine whether pregnancy and smoking status are independent.

Smoking Status Parity
Before Pregnancy No children Children
Nonsmoker 20 20
Smoker 5 55


log in

reset password

Back to
log in