1. Choose thebesthypothesis for the following research question:Is there a relationship between years of education attainedand current annual income?

	A	There is a relationship between education and income. Education depends on income.
	B	There is a relationship between education and income. At higher levels of education, we expect people to have higher incomes, on average.
	C	There is a relationship between education and income. When people get more education,they have an increased desire to earn more money because they feel they deserve it.
	D	There is a relationship between education and income. Less educated people have lower incomes because they live in areas with lots of poverty.

2. Choose the answer below that correctlyinterprets the following descriptive statistics foryears ofeducation and annual income:

EDUCATION: mean= 12.5,sd= 4.00

INCOME: mean= 19,700, sd=16,000

	A	In our GSS sample,people with 12.5 years of education make about $19,700 per year,on average.
	B	Our sample respondents have about 12.5 years of education, on average, with a standard deviation of 4years.GSS respondents have anaverage income of about $19,700, with a standard deviation of $16,000.
	C	The average education levelamong adults in the U.S.is 12.5years and the average income is $19,700.
	D	Most people have 12.5years of education and make about $19,700 per year.

3. Which of the following correctly identifies the variables in this quiz?

	A	years of education:interval-ratio,independent annual income:dichotomous,dependent
	B	years of education:interval-ratio,dependent annual income:interval-ratio,independent
	C	years of education: interval-ratio, independent annual income:interval-ratio, dependent
	D	years of education:dichotomous,independent annual income:interval-ratio,dependent

4. Regression results from R for a linear regression of years of education on annual income show the following:

Coefficient/Estimate for education =1400, p-value <.000

Choose the answer below that accurately interprets these results.

	A	There is a significant, positive relationship between years of education and annual income.
	B	There is a significant,negative relationship between years of education and annual income.
	C	There is a significant, null relationship between years of education and annual income.
	D	There is no significant relationship between years of education and annual income.