Doncouse_Jeremy_Week1

Doncouse_Jeremy_Week1 - Math 116: Elementary Statistics...

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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 on-the-job 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 25-34 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 nominal-level, ordinal-level, interval-level or ratio-level measurement. a. Pages in the city of Cleveland telephone book would be ratio-level measurement. b. Rankings of tennis players would be ordinal-level measurement. c. Weights of air conditioners would be ratio-level measurement. d. Temperatures of 10 refrigerators would be interval-level measurement. e. Salaries of the top five CEOs in the United States would be ratio-level measurement. f. Ratings of eight plays (poor, fair, good, or excellent) would be ordinal-level measurement. g. Times required for mechanics to do a tune-up would be ratio-level measurement. h. Ages of students in a classroom would be ratio-level measurement. i. Marital status of patients in a physician’s office would be nominal-level measurement. j. Horsepower of tractor engines would be ratio-level 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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Doncouse_Jeremy_Week1 - Math 116: Elementary Statistics...

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