Chapter 11.5, Problem 7E

(a)

To determine

To explain: whetherthe Senate will vote to override the veto or not

Answer to Problem 7E

Based on these two surveys, it is predicted that senate will vote to override the veto.

Explanation of Solution

Given:

Sample size	Number of votes to override Veto	Percent of votes to override Veto
7	6	85.7%
22	16	72.7%
28	21	75%
31	17	54.8%
49	27	55.1%

Calculation:

From the question statement it is clear that the Senate needs two-third majority that is 66.7% votes to override the veto.

The first two surveys show that more than 66.7% votes which are enough to override the veto. So, based on these two surveys, it is predictedthat senate will vote to override the veto.

Conclusion:

Therefore, based on these two surveys, it is predictedthat senate will vote to override the veto.

(b)

To determine

To explain: whether the Senate will vote to override the veto or not

Answer to Problem 7E

Based on these two surveys, you can predict that senate will not vote to override the veto.

Explanation of Solution

Calculation:

As the sample size increases, the estimated percent of votes approaches 55.1%, which is not enough to override the veto. So, based on these two surveys, it is predictedthat senate will not vote to override the veto.

Conclusion:

Therefore, based on these two surveys, it is predicted that senate will not vote to override the veto.