Test Bank For Statistics for People Who (Think They) Hate Statistics, 7th Edition

Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 Chapter 2: Means to an End: Computing and Understanding Averages Test Bank Multiple Choice 1. The ______ is the value that best represents an entire group of scores. a. mean b. median c. mode d. average Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 2. All but which of the following are measures of central tendency? a. median b. mode c. standard deviation d. mean Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Computing the Mean Difficulty Level: Easy 3. Which measure of central tendency is considered the most precise? a. mean b. median c. mode d. average Ans: A KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: In Sum . . . Difficulty Level: Easy 4. The measure of central tendency considered the least precise is the ______. a. median b. mode Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 c. mean d. average Ans: B KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mode Difficulty Level: Easy 5. What should be used to determine central tendency? a. a correlation b. a graph c. the standard deviation d. the average Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Easy 6. ______ consists of the middle point of a set of values. a. Median b. Mean c. mode d. Average Ans: A KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 7. What is the most common average computed? a. the mode b. the mean c. the variance d. the median Ans: B KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 8. What is the symbol used to represent the mean? a. N b. n c. X d. X Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 9. What is another term for the mean? a. the midpoint b. the frequency value c. the arithmetic average d. the distribution Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 10. The value most often used to represent an entire group of scores is the ______. a. mode b. N c. median d. mean Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 11. If a distribution is “significantly distorted,” what is this called? a. variability b. outliers c. skew d. percentile Ans: C KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Easy 12. Measures of central tendency can also be described as ______. a. statistical measures b. measures of variability c. averages d. deviation scores Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 REF: Cognitive Domain: Knowledge Answer Location: Introduction Difficulty Level: Easy 13. What is the formula for computing the mean? a. ΣX + n b. ΣY / X c. ΣX / n d. ΣN + y Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Medium 14. The mean can also be described as the ______. a. common mean b. arithmetic mean c. mode d. weighted mean Ans: B KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Medium 15. Which of the following symbols represents the individual score? a. X b. n c. N d. Σ Ans: A KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 16. What does the Σ symbol represent? a. the mean b. the sum of values c. the sample size d. an individual score Ans: B KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 Difficulty Level: Easy 17. What is the Greek name for the letter Σ? a. phi b. rho c. sigma d. alpha Ans: C. KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 18. Which of the following symbols represents sample size? a. X b. y c. n d. M Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 19. What does the symbol M represent? a. mean b. sample size c. population size d. individual score Ans: A KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 20. If you know M = 5, and the sum of scores is 20, what is n? a. 4 b. 0.25 c. 100 d. need more information Ans: A KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 21. If ΣX = 4,390 and n = 4, what is M? a. 17,560 b. 0.0100 c. 1097.5 d. Need more information Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium 22. What is the mean value for the following scores: 10, 35, 40, 60, 55, 25, 50? a. 45 b. 44.17 c. 40 d. 39.29 Ans: D KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium 23. What is the mean value of the following scores: 12, 25, 15, 27, 32, 8? a. 19.83 b. 21.24 c. 20.00 d. 19.98 Ans: A KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium 24. What is the mean value of the following scores: 1.11, 1.17, 1.15, 2.02, 2.07, 3.11, 2.14? a. 2.14 b. 2.07 c. 1.74 d. 1.82 Ans: D KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium 25. What is the mean value of the following scores: 117, 132, 147, 156, 196? Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 a. 151.2 b. 149.6 c. 147.0 d. 148.7 Ans: B KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium 26. Your current exam mean is 97.2. If you receive a 99 on the next exam, what will happen to your mean? a. It has no effect. b. It will decrease c. It will increase. d. It cannot be determined. Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Analysis Answer Location: Computing the Mean Difficulty Level: Medium 27. Your current exam mean is 93.2. If you receive an 87 on the next exam, this will have the effect of ______. a. increasing your mean b. decreasing your mean c. having no effect on your mean d. cannot determine Ans: B KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Analysis Answer Location: Computing the Mean Difficulty Level: Medium 28. Your current exam mean is 95. If you receive a 95 on the next exam, your mean ______. a. will increase b. will decrease c. will remain the same d. cannot be determined Ans: C KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Analysis Answer Location: Computing the Mean Difficulty Level: Medium Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 29. The measure of central tendency most influenced by outliers is the ______. a. median b. mode c. mean d. variance Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 30. What does N represent? a. sample size b. population size c. sum of scores d. mean score Ans: B KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 31. What does n represent? a. sample size b. population size c. sum of scores d. mean score Ans: A KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Easy 32. Which measure of central tendency is also known as the midpoint for a set of scores? a. mode b. mean c. median d. sum Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 33. Which of the following best describes the mode? a. sum of all values in a group Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 b. midpoint in a set of scores c. number of subject collected d. most frequently occurring value(s) Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mode Difficulty Level: Easy 34. The mode will always consist of the ______. a. number of cases in the category b. name of the category c. format of the category d. size of the category Ans: B KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mode Difficulty Level: Medium 35. What is the mode of the following data: 47 Republicans, 49 Democrats, and 52 independents? a. 52 b. 49 c. democrats d. independents Ans: D KEY: Learning Objective: 2.4: Computing the mode for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mode Difficulty Level: Medium 36. What is the mode of the following data: 57 males and 43 females? a. 57 b. males c. females d. 43 Ans: B KEY: Learning Objective: 2.4: Computing the mode for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mode Difficulty Level: Medium 37. What is the mode of the following data: 52 bowls of spaghetti, 37 bowls of cereal, 14 sandwiches, and 17 personal pizzas? a. 14 Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 b. bowls of spaghetti c. 52 d. sandwiches Ans: B KEY: Learning Objective: 2.4: Computing the mode for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Mode Difficulty Level: Medium 38. Which of the following defines the median? a. sum of all values in a group b. most frequently occurring value c. average variability in a set of scores d. midpoint in a set of scores Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 39. What is the median for the following amounts: $11.75, $12.75, $13.00, $10.75, $11.50, $10.50, $10.75? a. $11.50 b. $11.75 c. $11.57 d. $11.00 Ans: A KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Medium 40. What is the median for the following amounts: $13,400; $17,560; $45,440; $68,550; $96,400? a. $13,400 b. $48,240 c. $45,440 d. $96,400 Ans: C KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Medium 41. What is the median of the following set of scores: 23, 17, 15, 32, 38, 47? a. 23 Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 b. 32 c. 17.4 d. 27.5 Ans: D KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Medium 42. What is the median of the following set of scores: 1.3, 4.7, 2.3, 3.3, 3.0, 2.9? a. 2.95 b. 3.05 c. 2.90 d. 3.00 Ans: A KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Medium 43. When there is an even number of scores, how is the median calculated? a. It is the average of the two middle scores. b. Use the smaller of the two middle scores. c. Use the larger of the two middle scores. d. The median cannot be calculated in this situation. Ans: A KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Easy 44. Regarding percentile points, what is the median also known as? a. Q1 b. Q2 c. Q3 d. Q4 Ans: B KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Medium 45. What is the 25th percentile also known as? a. Q1 b. Q2 c. Q3 Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 d. Q4 Ans: A KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 46. What is the 75th percentile also known as? a. Q1 b. Q2 c. Q3 d. Q4 Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 47. Market researchers sent out a survey to college students in Ohio to assess their preferences regarding three different brands of honey. When examining the average preference of the respondents, which measure of central tendency is most likely to be used to describe them? a. median b. mean c. mode d. weighted mean Ans: C KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Application Answer Location: In Sum… Difficulty Level: Medium 48. What impact do extreme scores have on the median? a. a positive skew b. a negative skew c. minimal impact d. nullifies the value Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Medium 49. Which of the following are used to define the percentage of cases equal to and below a certain point in a distribution of scores? a. T scores Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 b. Q points c. standard scores d. percentile points Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 50. A test score in the 97th percentile would be considered ______. a. very high b. very low c. about average d. cannot be determined Ans: A KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Medium 51. A test score in the 3rd percentile would be considered ______. a. very high b. very low c. about average d. cannot be determined Ans: B KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Medium 52. A test score in the 47th percentile would be considered ______. a. very high b. very low c. about average d. cannot be determined Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Medium 53. Which measure of central tendency is used when you calculate the average of individual income and find many extreme scores? a. mean b. median Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 c. mode d. standard error Ans: B KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Medium 54. If you calculate the average of individual income and find no outliers, which measure of central tendency should you use? a. mode b. median c. mean d. other Ans: C KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Application Answer Location: Computing the Mean Difficulty Level: Medium 55. What is the meaning of the term skew regarding a set of data? a. It is significantly distorted. b. It has been divided. c. It has been added. d. It is equalized. Ans: A KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Knowledge Answer Location: Computing the Median Difficulty Level: Easy 56. Which of the following sets of data illustrates skew? a. 2, 3, 5, 7, 9 b. 450, 472, 523, 547, 601 c. 23, 37, 42, 51, 147 d. 12, 14, 15, 17, 19 Ans: C KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Medium 57. What is the preferred measure of central tendency using the following data: $32,400; $42,500; $47,250; $49,570; $145,850? a. mean b. median Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 c. mode d. weighted mean Ans: B KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Analysis Answer Location: Computing the Median Difficulty Level: Medium 58. What would be your preferred measure of central tendency if you had the following data: $31,550; $33,750; $34,700; $37,550; $39,275? a. median b. mode c. mean d. average Ans: C KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Analysis Answer Location: Computing the Median Difficulty Level: Medium 59. What is the preferred measure of central tendency using the following data: 23 Americans, 57 Mexicans, and 14 Canadians? a. mean b. weighted mean c. median d. mode Ans: D KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Analysis Answer Location: Computing the Mode Difficulty Level: Medium 60. What would be your preferred measure of central tendency if you had the following data: 57 males and 23 females? a. median b. weighted mean c. mean d. mode Ans: D KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Analysis Answer Location: Computing the Mode Difficulty Level: Medium Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 True/False 1. While there are three measures of central tendency, the mean, median, and mode are all interchangeable anyway. Ans: F KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Introduction Difficulty Level: Easy 2. Use the mode as a measure of central tendency when the data are qualitative in nature. Ans: T KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Comprehension Answer Location: In Sum… Difficulty Level: Easy 3. The nominal level of measurement is defined by categories. Ans. T KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. Answer Location: A Rose by any Other Name: The Nominal Level of Measurement REF: Cognitive Domain: Knowledge Difficulty Level: Medium 4. The nominal level can be the least precise level of measurement. Ans: T KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Knowledge Answer Location: A Rose by any Other Name: The Nominal Level of Measurement Difficulty Level: Medium 5. Nominal levels of measurements have categories that are not mutually exclusive. Ans: F KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Knowledge Answer Location: A Rose by any Other Name: The Nominal Level of Measurement Difficulty Level: Medium 6. The ordinal level of measurement stands for order. Ans: T KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Knowledge Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 Answer Location: Any Order Is Fine by Me: The Ordinal Level of Measurement Difficulty Level: Medium 7. The interval level of measurement is based on some underlying continuum. Ans: T KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Knowledge Answer Location: 1 + 1 = 2: The Interval Level of Measurement Difficulty Level: medium 8. The ratio level of measure does not have an absolute zero on the scale. Ans: F KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Knowledge Answer Location: Can Anyone Have Nothing or Anything? The Ratio Level of Measurement Difficulty Level: Hard 9. The ratio level is the least precise level of measurement. Ans: F KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Knowledge Answer Location: In Sum… Difficulty Level: medium 10. The more precise scales contain all the qualities of the scales below them. Ans: T KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Knowledge Answer Location: In Sum… Difficulty Level: Medium Short Answer 1. Why is the mean the most frequently used measure of central tendency? Ans: When the distribution of scores is free of outliers (i.e., extreme scores), the mean tends to be the most precise measure of central tendency. KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Comprehension Answer Location: In sum . . . Difficulty Level: Medium Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 2. What is the formula for calculating the mean? What does each of the symbols represent? Ans: ΣX / n, where Σ represents summation, X represents individual scores, and n represents the sample size. KEY: Learning Objective: 2.2: Computing the mean for a sample of scores. REF: Cognitive Domain: Knowledge Answer Location: Computing the Mean Difficulty Level: Medium 3. What is meant by the term outlier? Ans: An outlier refers to any extreme scores in a data set. KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Computing the Median Difficulty Level: Medium 4. When might the median be the more appropriate measure of central tendency over the mean? Ans: When there are extreme scores in a distribution, calculating the mean would result in skewed results. The median provides a more accurate measure of the average. KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Application Answer Location: Computing the Median Difficulty Level: Hard 5. What does the term bimodal mean? Ans: Bimodal refers to a distribution of scores that has two different modes, or two scores that occur most frequently. KEY: Learning Objective: 2.1: Understanding measures of central tendency. REF: Cognitive Domain: Comprehension Answer Location: Apple Pie a la Bimodal Difficulty Level: Medium 6. When is the mode the best measure of central tendency to use? Ans: The mode should be used when working with categorical or nominal data (e.g., gender). KEY: Learning Objective: 2.6: Selecting a measure of central tendency. REF: Cognitive Domain: Application Answer Location: Computing the Mode Difficulty Level: Medium 7. How would you calculate the median when you have an even number of scores? Ans: Take the mean of the middle two values. KEY: Learning Objective: 2.3: Computing the median for a sample of scores. REF: Cognitive Domain: Application Answer Location: Computing the Median Instructor Resource Salkind, Statistics for People Who (Think They) Hate Statistics, 7e SAGE Publishing, 2020 Difficulty Level: Medium 8. When is the nominal level of measurement the correct level of measurement to use? Ans: When we measure a variable that has categories like female or male, we can use the nominal level of measurement. KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Comprehension Answer Location: A Rose by Any Other Name: The Nominal Level of Measurement Difficulty Level: Hard 9. When is the ordinal level of measurement the correct level of measurement to use? Ans: When we measure a variable that has a ranking order like class ranking, we can use the ordinal level of measurement. KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Comprehension Answer Location: Any Order is Fine With Me: The Ordinal Level of Measurement Difficulty Level: Hard 10. When is the ratio level of measurement the correct level of measurement to use? Ans: When we measure a variable that has the true zero on the scale like watching TV or doing homework by hour, we can use the ratio level of measurement. KEY: Learning Objective: 2.5: Understanding and applying scales or levels of measurement. REF: Cognitive Domain: Comprehension Answer Location: Can Anyone Have Nothing of Anything? The Ratio Level of Measurement Difficulty Level: Hard