psychology 302 quantitative methods

Psychology 302Quantitative Methods

Review Quiz

1. Which of the following frequency distributions if

positively skewed?

A

C

B1. A2. B3. C

1. Which of the following frequency distributions if

positively skewed?

A

C

B1. A2. B3. C

2. Which of the following is measurement data?

A. Number of students in psy 302B. First place teamC. Smith wears jersey number 22D. Ranking scaleE. c & d

2. Which of the following is measurement data?

A. Number of students in psy 302B. First place teamC. Smith wears jersey number 22D. Ranking scaleE. c & d

3. Total jobs at all U.S. auto plants and parts factories will rise 10% to about 650,000 this year, says the Center for Automotive Research. 650,000 jobs is an example of ____ data.A. NominalB. ordinalC. measurementD. A & BE. all of the above

3. Total jobs at all U.S. auto plants and parts factories will rise 10% to about 650,000 this year, says the Center for Automotive Research. 650,000 jobs is an example of ____ data.A. NominalB. ordinalC. measurementD. A & BE. all of the above

4. Which of the following is true of the mean?

A. The mean uses all the data.

B. The individual has a mean.

C. We calculate the mean on Categorical Data

D. All of the above

4. Which of the following is true of the mean?

A. The mean uses all the data.

B. The individual has a mean.

C. We calculate the mean on Categorical Data

D. All of the above

5. Which of the following is concerned with frequency of values of one variable called X

A. The meanB. the standard deviation C. a frequency

distributionD. the medianE. all of the above

5. Which of the following is concerned with frequency of values of one variable called X

A. The meanB. the standard deviation C. a frequency

distributionD. the medianE. all of the above

6. We use a sample statistic to estimate a population _____.

A. ProportionB. Standard DeviationC. ProbabilityD. ProbandE. Parameter

6. We use a sample statistic to estimate a population _____.

A. ProportionB. Standard DeviationC. ProbabilityD. ProbandE. Parameter

7. Which of the following is an example of categorical data?

A. Mary has a 3.75 GPAB. Tyrone 13 years oldC. Tom Brady is number

12 D. Newt Gingrich

received 11,234 votesE. It was 37 degrees this

morning

7. Which of the following is an example of categorical data?

A. Mary has a 3.75 GPAB. Tyrone 13 years oldC. Tom Brady is number

12 D. Newt Gingrich

received 11,234 votesE. It was 37 degrees this

morning

8. Based on the table below, the University of Texas had a score of 4.2 and a rank of 13. Which of the following is true?

A. 4.2 is measurement data

B. 13 is measurement data

C. 4.2 is categorical dataD. 13 is categorical dataE. A and D are true

8. Based on the table below, the University of Texas had a score of 4.2 and a rank of 13. Which of the following is true?

A. 4.2 is measurement data

B. 13 is measurement data

C. 4.2 is categorical dataD. 13 is categorical dataE. A and D are true

9. A study of a sleeping pill gave the pill to one group of insomniacs and a placebo (sugar pill) to the other. They then

measured sleeping time in minutes. The dependent variable is:

A. which pill they gotB. the number of subjects

in each groupC. the number of subjects

in the treatment groupD. amount of active

ingredient in the pillE. sleeping time in minutes

9. A study of a sleeping pill gave the pill to one group of insomniacs and a placebo (sugar pill) to the other. They then

measured sleeping time in minutes. The dependent variable is:

A. which pill they gotB. the number of subjects

in each groupC. the number of subjects

in the treatment groupD. amount of active

ingredient in the pill

E. sleeping time in minutes

10. In a histogram the Y axis always lists:

A. categorical dataB. the intervalC. frequencyD. the value of XE. all of the above

10. In a histogram the Y axis always lists:

A. categorical dataB. the intervalC. frequencyD. the value of XE. all of the above

Bonus: If the scores are not all the same they vary. We measure this variability with:

A. The meanB. The correlation

coefficientC. The standard deviationD. SkewnessE. All of the above

Bonus: If the scores are not all the same they vary. We measure this variability with:

A. The meanB. The correlation

coefficientC. The standard

deviationD. SkewnessE. All of the above

sx xn

( ) 2

1

12. Which of the following is a parameter?

A. XB. σC. D. ME. All of the above

X

12. Which of the following is a parameter?

A. XB. σC. D. ME. All of the above

X