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Math 116: Elementary Statistics
Name: Jeremy Doncouse
Mountain State University, Beckley, WV 25801
ID: 154376
Chapter 1: The Nature of Probability and Statistics
1.1. In each of these statements, tell whether descriptive or inferential statistics have been used.
a. In the year 2020, 148M Americans will be enrolled in an HMO would be
inferential
statistics.
b. Nine out of ten onthejob fatalities are men would be
descriptive
statistics.
c. Expenditures for the cable industry were $5.66B in 1996 would be
descriptive
statistics.
d. The median household income for people aged 2534 is $35,888 would be
descriptive
statistics.
e. Allergy therapy makes bees go away would be
inferential
statistics.
f. Drinking decaffeinated coffee can raise cholesterol levels by 7% would be
descriptive
statistics.
g. The average annual medicine expenditure per person is $1052 would be
descriptive
statistics.
h. Experts say that mortgage rates may soon hit bottom
inferential
statistics.
1.2. Classify each as nominallevel, ordinallevel, intervallevel or ratiolevel measurement.
a. Pages in the city of Cleveland telephone book would be
ratiolevel
measurement.
b. Rankings of tennis players would be
ordinallevel
measurement.
c. Weights of air conditioners would be
ratiolevel
measurement.
d. Temperatures of 10 refrigerators would be
intervallevel
measurement.
e. Salaries of the top five CEOs in the United States would be
ratiolevel
measurement.
f. Ratings of eight plays (poor, fair, good, or excellent) would be
ordinallevel
measurement.
g. Times required for mechanics to do a tuneup would be
ratiolevel
measurement.
h. Ages of students in a classroom would be
ratiolevel
measurement.
i. Marital status of patients in a physician’s office would be
nominallevel
measurement.
j. Horsepower of tractor engines would be
ratiolevel
measurement.
1.3. Classify each variable as qualitative or quantitative.
a. Number of bicycles sold in 1 year by a large store would be a
quantitative
variable
b. Colors of baseball caps in a store would be a
qualitative
variable.
c. Times it takes to cut a lawn would be a
quantitative
variable.
d. Capacity in cubic feet of six truck beds would be a
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 Fall '09
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 Statistics, Inferential Statistics, Probability

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