Circle the value that summarizes the data, and determine whether it is a parameter or statistic.
1. A sample of students is selected, and the average age is 20.7 years.
2. After checking computer records for every commercial movie made last year, the longest running time is found to be 187 minutes.
3. All of the state governors are surveyed, and 30 of them are found to be Democrats.
4. Several Domino sugar packs are randomly selected, and the mean weight of the contents is 3.647 g.
Determine whether the given values are from a discrete or continuous data set.
5. A Statistics professor counts 3 absent students.
6. A Statistics professor finds that on the first test, the first paper is turned in 39.627 minutes after the test began.
7. In a survey of 1068 Americans, 673 state that they still own landline telephones.
8. A manufacturer of rechargeable calculator batteries finds that one batch consists of 850 good batteries and 7 that are defective.
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.
9. Heights of women basketball players in the WMBA
10. Ratings of superior, above average, average, below average, and poor for a survey rating your experience at your place of employment
11. Noon temperatures (in degrees Fahrenheit) in Death Valley this week
12. Student ID numbers
13. The years in which the editions of our current textbook were published
14. Zip codes
15. Consumer Reports magazine ratings of “best buy, recommended, not recommended”
16. Distances traveled from students’ houses to the senior high school.
17. The actual contents (in ounces) of cola in Pepsi cans labeled 12 oz.
18. The number of errors made when a Giant Eagle store scans 8000 different purchases.
Explain.
19. In the “Born Loser” cartoon strip by Art Sansom, Brutus expresses joy over an increase in temperature from 1 to 2 degrees. When asked what is so good about 2 degrees, he answers that “It’s twice as warm as this morning.” Explain why Brutus is wrong.