According to a poll by the Pew Research Center, 55% of young adults (ages 18-29) believe that evolution is the best explanation for the development of human life.12 When the data are further categorized by whether or not the responders had a religious affiliation, this proportion changed for those not having a religious affiliation. The data that follow reflect the results of this poll.

a. Do the data indicate that the proportion of young adults who believe that evolution provides the best answer to the development of human life differ for those with a religious affiliation versus those without a religious affiliation? Use α =.05.
b. If significant differences exist, explain what changes appear to have taken place when religious affiliation is included in the categorization.

Total 199 151 350 Not Affiliated Yes No Total Religious Affiliation 47 53 100 152 98 250