Answer
$X_0^2=41.767$ with a P-value $\ltα$. Reject the null hypothesis.
There is enough evidence to conclude that the proportions of adults who feel morality is important are not equal for each political affiliation.
Work Step by Step
$H_0:$ the proportions of adults who feel morality is important are equal for each political affiliation.
versus
$H_1:$ the proportions of adults who feel morality is important are not equal for each political affiliation.
In MINITAB, enter the given values:
1-C1 = 644, 1-C2 = 662, 1-C3 = 670
2-C1 = 56, 2-C2 = 155, 2-C3 = 147
Select Stat -> Tables -> Chi-Square Test for Association
Select "Summarized data in a two-way table"
In columns containing the table enter: C1 C2 C3
Click OK.
$X_0^2=41.767$ with a P-value $\lt0.001\ltα=0.05$
