On the most recent tax cut proposal,a random sample of Democrats and Republicans in the Congress cast their votes as follows: Suppose,the Chi-square test of independence is performed and the null hypothesis is rejected that the vote on the issue and party affiliation are independent.Provide a one-sentence interpretation of the outcome of the test.
A)The party affiliation is not independent of the votes on the tax cut proposal.
B)How votes are cast on the tax cut proposal are independent of the party affiliation.
C)Party affiliation does not affect how individuals vote on the tax cut proposal.
D)There is insufficient evidence to determine a correlation between party affiliation and the congressman's opinion on the tax cut proposal.

Question

On the most recent tax cut proposal,a random sample of Democrats and Republicans in the Congress cast their votes as follows:  Suppose,the Chi-square test of independence is performed and the null hypothesis is rejected that the vote on the issue and party affiliation are independent.Provide a one-sentence interpretation of the outcome of the test.
A)The party affiliation is not independent of the votes on the tax cut proposal. 
B)How votes are cast on the tax cut proposal are independent of the party affiliation. 
C)Party affiliation does not affect how individuals vote on the tax cut proposal. 
D)There is insufficient evidence to determine a correlation between party affiliation and the congressman's opinion on the tax cut proposal.

Quizplus · Accepted Answer

The null hypothesis of independence was rejected, suggesting that the party affiliation and votes on the tax cut proposal are not independent. Therefore, party affiliation is a factor affecting how individuals vote on the tax cut proposal.

On the Most Recent Tax Cut Proposal,a Random Sample of Democrats