Quiz 1 - Quantitative Methods with correct questions and answers

Quiz 1 - Quantitative
Methods with correct
questions and answers




usr
[COMPANY NAME] [Company address]

, 1. Which of the following is a qualitative variable?
a. Weight in kilograms
b. # of days w/o precipitation
c. ethnicity
d. avg daily temperature Answer: ethnicity
2. In an experiment on the effect of sleep on memory, the
independent variable is..
a. number of hours of sleep
b. recall score on a memory test
c. gender of the subjects
d. gender of the experimenter Answer: number of hours of sleep (what is being
manipulated)
3. A discrete variable is
a. one that can take on any value in a certain range
b. one that can only take on a finite number of values Answer: one that can
only take on a finite number of values
4. Identify the scale of measurement for the following military
hierarchy Answer: lieu- tenant, captain, major
a. interval
b. nominal
c. ratio
d. ordinal Answer: ordinal
5. which of the following can measure variability? Select all that
applies
a. mean
b. median
c. range
d. variance
e. standard deviation
f. interquartile range Answer: range, variance, standard deviation, interquartile range
6. which of the following are measures of central tendency? Select all
that apply
a. mean
2/
6