1. Chapter 1 Review
Explain the difference between a population and a sample.

2. Chapter 1 Review
Explain the term “descriptive statistics.”

3. Chapter 1 Review
Explain the term “inferential statistics.”

4. Chapter 1 Review
____________ are the characteristics of the individuals of the population being studied.

5. Chapter 1 Review
Contrast the differences between qualitative and quantitative variables.

6. Chapter 1 Review
Discuss the differences between discrete and continuous variables.

7. Chapter 1 Review
In your own words, define the four levels of measurement of a variable. Give an example of each.

8. Chapter 1 Review
The age of a person is commonly considered to be a continuous random variable. Could it be considered a discrete random variable instead? Explain.

9. Quantitative or Qualitative
Phone number
Qualitative

10. Quantitative or Qualitative
Assessed value of a house
Quantitative

11. Quantitative or Qualitative
Number of unpopped kernels in a bag of ACT microwave popcorn
Quantitative

12. Quantitative or Qualitative
Number of days during the past week that a college student aged 21 years or older has had at least one drink
Quantitative

13. Quantitative or Qualitative
Number on a football player’s jersey
Qualitative

14. Quantitative or Qualitative
Temperature
Quantitative

15. Quantitative or Qualitative
Grams of carbohydrates in a doughnut
Quantitative

16. Quantitative or Qualitative
Gender
Qualitative

17. Quantitative or Qualitative
Nation of origin
Qualitative

18. Quantitative or Qualitative
Zip code
Qualitative

19. Quantitative or Qualitative
Number of siblings
Quantitative

20. Discrete or Continuous
Air pressure in pounds per square inch in an automobile tire
Continuous

21. Discrete or Continuous
Points scored in an NCAA basketball game
Discrete

22. Discrete or Continuous
Internet connection speed in kilobytes per second
Continuous

23. Discrete or Continuous
The distance a 2007 Toyota Prius can travel in city driving conditions with a full tank of gas
Continuous

24. Discrete or Continuous
Temperature on a randomly selected day in Memphis, Tennessee
Continuous

25. Discrete or Continuous
Number of sequoia trees in a randomly selected acre of Yosemite National Park
Discrete

26. Discrete or Continuous
Length of a country song
Continuous

27. Discrete or Continuous
The number of cars that arrive at a McDonald’s drive-through between 12:00 PM and 1:00 PM
Discrete

28. Discrete or Continuous
Volume of water lost each day through a leaky faucet
Continuous

29. Discrete or Continuous
Runs scored in a season by Babe Ruth
Discrete

30. Discrete or Continuous
The number of heads obtained after flipping a coin five times
Discrete

31. Level of Measurement
Nation of origin
Nominal

32. Level of Measurement
Gender
Nominal

33. Level of Measurement Movie ratings of one star through five stars
Ordinal

34. Level of Measurement Volume of water used by a household in a day
Ratio

35. Level of Measurement
Temperature
Interval

36. Level of Measurement
Year of birth of college students
Interval

37. Level of Measurement
Highest degree attained (high school, bachelor’s, etc)
Ordinal

38. Level of Measurement
Number of days during the past week that a college student aged 21 years or older has had at least one drink
Ratio

39. Level of Measurement
Eye color
Nominal

40. Level of Measurement Letter grade earned in your statistics class
Ordinal

41. Level of Measurement
Assessed value of a house
Ratio

42. Level of Measurement
Time of day measured in military time
Interval

43. Random, Cluster, Systematic, Stratified, Convenience
A __________ is obtained by dividing the population into groups and selecting all individuals from within a random sample of the groups.
Cluster

44. Random, Cluster, Systematic, Stratified, Convenience
A _________ is obtained by dividing the population into groups of the same kind and randomly selecting individuals from each group.
Stratified

45. Random, Cluster, Systematic, Stratified, Convenience
To estimate the percentage of defects in a recent manufacturing batch, a quality-control manager at Intel selects every 8th chip that comes off the assembly line starting with the 3rd until she obtains a sample of 140 chips.
Systematic

46. Random, Cluster, Systematic, Stratified, Convenience
To determine the prevalence of human growth hormone (HGH) use among high school varsity baseball players, the State Athletic Commission randomly selects 50 high schools. All members of the selected high schools’ varsity baseball teams are tested for HGH.
Cluster

47. Random, Cluster, Systematic, Stratified, Convenience
To determine customer opinion of its boarding policy, Southwest Airlines randomly selects 60 flights during a certain week and surveys all passengers on the flights.
Cluster

48. Random, Cluster, Systematic, Stratified, Convenience
A member of Congress wishes to determine her constituency’s opinion regarding estate taxes. She divides her constituency into three income classes: low-income households, middle-income households, and upper- income households. She then takes a simple random sample of households from each income class.
Stratified

49. Random, Cluster, Systematic, Stratified, Convenience
In an effort to identify if an advertising campaign has been effective, a marketing firm conducts a nationwide poll by randomly selecting individuals from a list of known users of the product.
Random

50. Random, Cluster, Systematic, Stratified, Convenience
A radio station asks its listeners to call in their opinion regarding the use of U.S. forces in peacekeeping missions.
Convenience

51. Random, Cluster, Systematic, Stratified, Convenience
A farmer divides his orchard into 50 subsections, randomly selects 4, and samples all the trees within the 4 subsections to approximate the yield of his orchard.
Cluster

52. Random, Cluster, Systematic, Stratified, Convenience
A school official divides the student population into five classes: freshman, sophomore, junior, senior, and graduate student. The official takes a simple random sample from each class and asks the members’ opinions regarding the student services.
Stratified

53. Random, Cluster, Systematic, Stratified, Convenience
A survey regarding download time on a certain website is administered on the Internet by a market research firm to anyone who would like to take it.
Convenience

54. Random, Cluster, Systematic, Stratified, Convenience
The presider of a guest-lecture series at a university stands outside the auditorium before a lecture begins and hands every fifth person who arrives, beginning with the third, a speaker evaluation survey to be completed and turned in at the end of the program.
Systematic

55. Random, Cluster, Systematic, Stratified, Convenience
To determine his DSL Internet connection speed, Shawn divides up the day into four parts: morning, midday, evening, and late night. He then measures his Internet connection speed at 5 randomly selected times during each part of the day.
Stratified

56. Random, Cluster, Systematic, Stratified, Convenience
24 Hour Fitness wants to administer a satisfaction survey to its current members. Using its membership roster, the club selects 40 club members names out of a hat and asks them about their level of satisfaction with the club.
Random