51. The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the average age of all the students at City College
a.
must be more than 22, since the population is always larger than the sample
b.
must be less than 22, since the sample is only a part of the population
c.
could not be 22
d.
could be larger, smaller, or equal to 22
ANS: D PTS: 1 TOP: Descriptive Statistics
52. Since a sample is a subset of the population, the sample mean
a.
is always smaller than the mean of the population
b.
is always larger than the mean of the population
c.
must be equal to the mean of the population
d.
can be larger, smaller, or equal to the mean of the population
ANS: D PTS: 1 TOP: Descriptive Statistics
53. The scale of measurement that is simply a label for the purpose of identifying the attribute of an element is the
a.
ratio scale
b.
nominal scale
c.
ordinal scale
d.
interval scale
ANS: B PTS: 1 TOP: Descriptive Statistics
54. In a data set, the number of elements will always be the same as the number of
a.
independent variables
b.
observations
c.
data points
d.
dependent variables
ANS: B PTS: 1 TOP: Descriptive Statistics
55. Which of the following is not a scale of measurement?
a.
nominal
b.
ordinal
c.
interval
d.
primal
ANS: D PTS: 1 TOP: Descriptive Statistics
56. Which of the following is a scale of measurement?
a.
ratio
b.
primal
c.
divisional
d.
remedial
ANS: A PTS: 1 TOP: Descriptive Statistics
57. Which scale of measurement can be either numeric or nonnumeric?
a.
nominal
b.
ratio
c.
interval
d.
None of these alternatives is correct.
ANS: A PTS: 1 TOP: Descriptive Statistics