What was the us consumer savings rate

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Reference no: EM13859976

I. Motivation of research, dependent and independent variables, and hypotheses

a. State what the motivation of the research (either description, identification of relationship/difference, or explanation [inferring cause and effect]) probably is for each research question.

b. For each question that involves either the second or third motivation, identify the dependent variable, the independent variable(s) and write an alternative directional hypothesis for the study.

[Hint: Think about which variable probably occurs or varies or changes first and which variable probably follows.]

[Remember: if the study involves a motivation to describe a variable, part b. is irrelevant.]

1. What was the U.S. consumer savings rate in 2002, 2007, 2010, and 2013?

2. Do self-esteem rating scales differ between teenagers who live in two-parent households versus those who live in single-parent households?

3. What is the effect of attending a peer nutrition counseling program on college students' knowledge of healthy food three months later?

4. Holding constant husbands' wage rates, is there an effect of wives' wage rates on their husbands' time allocation to household works?

5. Are California counties' unemployment rates associated with California counties' rates of substandard ("low quality") housing among female headed households?

6. What is the proportion of U.S. households who have used online banking services?

7. What is the effect of a change in the price of organic milk on the quantity demanded of organic milk by American consumers?

8. Is the effect of organic milk price change on the quantity demanded of organic milk the same for consumers of different ethnicities (Caucasian-Americans, African-Americans, and Asian Americans)? (Hint: how many I.V.s are there?)

II. Practice with hypothesis: Mark the letter of the correct answer on the left.

1. Which of the following is a null hypothesis?

A. There is a statistically significant difference in loan rejection rates of white males, white females, African-American males, and African-American females.

B. Loan approvals are dependent upon applicants' gender.

C. There is no relationship between applicants' race and gender and the rate at which their loan applications are approved.

D. Bank lending practices are discriminatory in terms of race and gender.

E. All of the above.

2. What is an example of an alternate one-tailed (or directional) hypothesis?

A. There is a statistically significant relationship between college students' opportunity cost of time and their grade point average.

B. Students who have higher opportunity const of time have lower grade point average than those who have a lower opportunity cost of time.

C. The opportunity cost of students' time is related to their grades.

D. There is no statistically significant difference in the opportunity cost of time of student with different grade point of average.

E. None of the above.

3. Which of the following is a hypothesis of an interaction effect of two independent variables?

A. Married males have the highest rates of obesity, followed proportionately by single males, married females, and single females.

B. Males have higher rates of obesity than do females.

C. Married males have the highest rates of obesity, followed successively by married females, single females, and single males.

D. Single people have higher rates of obesity than married people.

E. None of the above.

4. Which of these is a hypothesis with a curvilinear effect of one variable on another?

A. There is a positive relationship between consumers' age and their willingness to shop online up until age 40; after that age, there is no relationship between consumers' age and willingness to shop online.

B. As the price of gasoline decreases, the quantity of gasoline demanded increases proportionately (that is, for a one unit decrease in one, there is a one unit increase in the other).

C. Individuals become more risk averse with each successive year of age.

D. There is a positive relationship between children's time horizon and their likelihood of saving any money from their allowances.

E. None of the above.

5. What is true about this hypothesis: controlling for their attitudes toward debt, individuals who are more knowledgeable about credit have lower levels of debt.

A. This is a hypothesis of an interaction effect.

B. Respondents' attitude towards debt is the dependent variable.

C. The control variable (or covariate) is level of debt.

D. The independent variable is knowledge about credit.

E. All of the above.

Reference no: EM13859976

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