1. Unit 2 Quiz: Review questions

2. Can you explain your answer?
Use your fingers to indicate your answer: 1=A, 2=B, 3=C, 4=D.
After viewing the question, show me your answer in 15 seconds.
Next, turn to your neighbor and you have one minute to convince him/her that you are right.

3. Dr. Candy Storr collected student records at APU
Dr. Candy Storr collected student records at APU. The records include their GPA and household income. These are _____________.
Data
Information

4. Dr. Candy Storr found that there is a positive relationship between household income and GPA. This finding is considered _____________.
Data
Information

5. Professor Ann Thrax compared the growth of GNP of all member nations of the UN. Based on these data he predicted that by 2030 Asia will overtake the West in GNP per Capita. These data are _______.
Individual data
Summary data
Qualitative data
All of the above

6. Dr. Gladys Friday studied the relationship between hours of exercise per week and GPA using 500 student records. These data are:
Individual data
Summary data
Qualitative data
All of the above

7. At the annual Marathon, prizes are awarded for 1st, 2nd, 3rd, 4th, and 5th place. These “places” comprise a(n) __________.
nominal scale
ordinal scale
interval scale
ratio scale

8. Gender of children is an example of a(n) _________ scale.
ratio
nominal
ordinal
interval

9. In many statistics software packages the measurement scale includes nominal, ordinal, and continuous only because
there is no difference between interval and ratio in computation. *
the ratio scale requires a high degree of precision; it consumes too much RAM and CPU cycles.
cannot take an infinite number of intermediate possible values
b and c

10. A researcher wants to find out whether drinking three cups of green tea per day can improve memory. In this case memory is:
dependent variable
independent variable
factor
predictor