Ch02_Sect02_Keller MS_AISE TB

# Ch02_Sect02_Keller MS_AISE TB - CHAPTER 2 SECTION 2...

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CHAPTER 2 SECTION 2: GRAPHICAL AND TABULAR DESCRIPTIVE TECHNIQUES MULTIPLE CHOICE 35. Which of the following statements about pie charts is false? a. A pie chart is a graphical representation of a relative frequency distribution. b. You can always determine frequencies for each category by looking at a pie chart. c. The total percentage of all the slices of a pie chart is 100%. d. The area of a slice of a pie chart is the proportion of all the individuals that fall into that particular category. ANS: B PTS: 1 REF: SECTION 2.2 36. Which of the following situations is best suited for a pie chart? 37. Which situation identifies when to use pie charts and/or bar charts? 38. Suppose you measure the number of minutes it takes an employee to complete a task, where the maximum allowed time is 5 minutes, and each time is rounded to the nearest minute. Data from 130 employees is summarized below. How long did it take most employees to complete the task? Time (minutes) 1 2 3 4 5 Frequency 15 30 40 25 20 This edition is intended for use outside of the U.S. only, with content that may be different from the U.S. Edition. This may not be resold, copied, or distributed without the prior consent of the publisher.

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39. Car buyers were asked to indicate the car dealer they believed offered the best overall service. The four choices were Carriage Motors (C), Marco Chrysler (M), Triangle Auto (T), and University Chevrolet (U). The following data were obtained: T C C C U C M T C U U M C M T C M M C M T C C T U M M C C T T U C U T M M C U T What percentage of car buyers identified Carriage Motors as having the best overall service? a. 1/4 = 0.25 or 25% b. 14/40 = 0.35 or 35% c. 14% d. None of these choices. ANS: B PTS: 1 REF: SECTION 2.2 TRUE/FALSE 40. A bar chart is used to represent interval data.
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