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1. Question
: When using the Chebyshev’s
theorem to obtain the bounds for 99.73 percent of the values in a population,
the interval generally will be _______ the interval obtained for the same
percentage if normal distribution is assumed (empirical rule).
narrower than
wider than
the same as
2. Question : An example of a qualitative variable is the mileage of a
car.
True
False
3. Question : By taking a systematic sample, in which we select every
100th shopper arriving at a specific store, we are approximating a random
sample of shoppers.
True
False
4. Question : All of the following are measures of central tendency
except the
range
mode
mean
median
5. Question : Measurements from a population are called
statistics.
observations.
variables.
inferences.
6. Question : A normal population has 99.73 percent of the population
measurements within ___ standard deviations of the mean.
one
two
three
four
7. Question : When a population is skewed to the left or right with a
very long tail, what is the best measure to use for central tendency.
Population mean
Population mode
Population median
Population standard deviation
8. Question : All of the following are measures of central tendency
except the
range
mode
mean
median
9. Question : Which percentile describes the first quartile Q1?
25th
50th
75th
100th
10. Question : Any characteristic of a population unit is called a
measurement.
sample.
observation.
variable.