Quantitative Methods Quiz 1 – Accurate Answers To
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Terms in this set (15)
Which of the following is a ethnicity
qualitative variable?
a. Weight in kilograms
b. # of days w/o
precipitation
c. ethnicity
d. avg daily temperature
In an experiment on the number of hours of sleep (what is being manipulated)
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
A discrete variable is one that can only take on a finite number of values
a. one that can take on any
value in a certain range
b. one that can only take on
a finite number of values
Identify the scale of ordinal
measurement for the
following military hierarchy:
lieutenant, captain, major
a. interval
b. nominal
c. ratio
d. ordinal
, which of the following can range, variance, standard deviation, interquartile range
measure variability? Select
all that applies
a. mean
b. median
c. range
d. variance
e. standard deviation
f. interquartile range
which of the following are mean, median, mode
measures of central
tendency? Select all that
apply
a. mean
b. median
c. mode
d. variance
e. standard deviation
f. linear transformation
Sometimes we need to use the distribution is extremely right-skewed
median instead of mean to
better measure central
tendency in a sample if
a. the sample has a large
variance
b. the distribution is
extremely right-skewed
c. we have measurement
error when collecting the
sample
d. the sample mean is too
small
positive skew has a long tail in the positive direction
All Questions
Save
Terms in this set (15)
Which of the following is a ethnicity
qualitative variable?
a. Weight in kilograms
b. # of days w/o
precipitation
c. ethnicity
d. avg daily temperature
In an experiment on the number of hours of sleep (what is being manipulated)
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
A discrete variable is one that can only take on a finite number of values
a. one that can take on any
value in a certain range
b. one that can only take on
a finite number of values
Identify the scale of ordinal
measurement for the
following military hierarchy:
lieutenant, captain, major
a. interval
b. nominal
c. ratio
d. ordinal
, which of the following can range, variance, standard deviation, interquartile range
measure variability? Select
all that applies
a. mean
b. median
c. range
d. variance
e. standard deviation
f. interquartile range
which of the following are mean, median, mode
measures of central
tendency? Select all that
apply
a. mean
b. median
c. mode
d. variance
e. standard deviation
f. linear transformation
Sometimes we need to use the distribution is extremely right-skewed
median instead of mean to
better measure central
tendency in a sample if
a. the sample has a large
variance
b. the distribution is
extremely right-skewed
c. we have measurement
error when collecting the
sample
d. the sample mean is too
small
positive skew has a long tail in the positive direction
