In a poll conducted by Harris Poll, a random sample of adult Americans was asked, “How important are moral values when deciding how to vote?” The results of the survey by disclosed political affiliation are shown in the table.

(a) Do the sample data suggest that the proportion of adults who feel morality is important differ based on political affiliation? Use the a = 0.05 level of significance.

(b) Construct a conditional distribution of morality by party affiliation and draw a bar graph. What does this summary tell you?

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Political Affiliation Republican Independent Democrat 670 644 662 Morality Important Not important 56 155 147