The U.S. Centers for Disease Control and Prevention

(CDC) recommends people consume five servings of fruits and vegetables daily. A random sample of adults from various states was asked if they follow these guidelines. The results are as follows:

Follow the CDC Guidelines?

State Yes No Delaware 10 30 Maryland 10 22 New Jersey 13 37 Pennsylvania 8 27

a. Using a = 0.05, perform a chi-square test to determine if the proportion of adults who follow the CDC’s guidelines differs among the four states.

b. Confirm your results using PHStat.

c. Interpret the meaning of the p-value from PHStat.

AppendixLO1