Question

Political party affiliation is believed to be a very strong indicator of how voters will vote in Presidential Elections. You are interested in determining if voter party loyalty has changed since 1992. During the 1992 election, the proportion of self-proclaimed Republicans who voted for George H. W. Bush was 0.914. During the 2012 election, in a survey of 358 Republican voters, 275 indicated that they had voted for Mitt Romney. The 99% confidence interval for this proportion is ( 0.7107 , 0.8256 ). What is the best conclusion you can make from this information that is listed below?

Question 4 options:

1)	We can claim that the proportion of self-proclaimed Republicans who voted in the 2012 election for their party candidate is larger than 0.914.

2)	The proportion of self-proclaimed Republicans who voted for their party candidate in 2012 who changed from 0.914 is 99%.

3)	We can not claim that the proportion of self-proclaimed Republicans who voted in the 2012 election for their party candidate differs from 0.914.

4)	We can conclude that the proportion of self-proclaimed Republicans who voted in the 2012 election for their party candidate is smaller than 0.914.

5)	The confidence interval does not provide enough information to form a conclusion.

Question 5 (1 point)

A student at a university wants to determine if the proportion of students that use iPhones is different from 0.45. If the student conducts a hypothesis test, what will the null and alternative hypotheses be?

Question 5 options:

1)	HO: p ≤ 0.45 HA: p > 0.45

2)	HO: p ≠ 0.45 HA: p = 0.45

3)	HO: p ≥ 0.45 HA: p < 0.45

4)	HO: p = 0.45 HA: p ≠ 0.45

5)	HO: p > 0.45 HA: p ≤ 0.45

Question 6 (1 point)

You hear on the local news that for the city of Kalamazoo, the proportion of people who support President Obama is 0.58. However, you think it is different from 0.58. If you conduct a hypothesis test, what will the null and alternative hypotheses be?

Question 6 options:

1)	HO: p > 0.58 HA: p ≤ 0.58

2)	HO: p ≥ 0.58 HA: p < 0.58

3)	HO: p ≠ 0.58 HA: p = 0.58

4)	HO: p = 0.58 HA: p ≠ 0.58

5)	HO: p ≤ 0.58 HA: p > 0.58

Answer 1