Solutions_to_selected_problems_Chpt_2_Part_1

Solutions_to_selected_problems_Chpt_2_Part_1 - Solutions to...

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Unformatted text preview: Solutions to End-of-Section and Chapter Review Problems 113 CHAPTER 2 2.1 (a) Category Frequency Percentage A 13 26% B 28 56 C 9 18 (b) The Bar Chart 18% 56% 26% 0% 10% 20% 30% 40% 50% 60% C B A Percentage of Category (c) The Pie Chart C 18% B 56% A 26% 114 Chapter 2: Presenting Data in Tables and Charts 2.1 (d) cont. The Pareto Chart 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% B A C 2.2 (a) Percentage 12 29 35 24 10 20 30 40 A B C D Solutions to End-of-Section and Chapter Review Problems 115 2.2 (b) cont. Pie Chart A 12% B 29% C 35% D 24% (c) 0% 5% 10% 15% 20% 25% 30% 35% 40% C B D A Category % 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Cummulative % 116 Chapter 2: Presenting Data in Tables and Charts 2.3 (a) Bar Chart 10 20 30 40 50 60 70 Do not use More than I should Too much Very little Within limits Use of the Internet at Work Pie Chart Do not use 26% More than I should 4% Too much 5% Very little 5% Within limits 60% Solutions to End-of-Section and Chapter Review Problems 117 2.3 (a) cont. Pareto Diagram 0% 10% 20% 30% 40% 50% 60% 70% Within limits Do not use Too much Very little More than I should Use of the Internet at Work 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% (b) The Pareto diagram is the best to portray these data because it not only sorts the frequencies in descending order, it also provides the cumulative polygon on the same scale. From the Pareto diagram, it is obvious that within limits and do not use have made up more than 80% of the use of Internet at work. * * Note: This is one of the many possible solutions for the question. (c) We can conclude that at least 80% of the workers use the Internet within limits or do not use the Internet at work. 2.4 (a) Bar Chart 5 10 15 20 25 30 Consulting Hardware tools Labor Lost business/revenue Nonproductive employee time Other Software tools Cost 118 Chapter 2: Presenting Data in Tables and Charts 2.4 (a) cont. Pie Chart Hardware tools 8.2% Labor 25.9% Lost business/revenu e 23.6% Nonproductive employee time 15.5% Other 5.0% Software tools 14.2% Consulting 7.6% Pareto Diagram 0% 5% 10% 15% 20% 25% 30% Labor Lost business/revenue Nonproductive employee time Software tools Hardware tools Consulting Other Cost 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% (b) The Pareto diagram is the best to portray these data because it not only sorts the frequencies in descending order, it also provides the cumulative polygon on the same scale. From the Pareto diagram, it is obvious that labor and lost business/revenue have made up about half of the costs. * * Note: This is one of the many possible solutions for the question. (c) We can conclude that labor and lost business/revenue make up about half of the costs. Solutions to End-of-Section and Chapter Review Problems 119 2.5 (a) Bar Chart 5 10 15 20 25 30 35 40 At the last minute Dont know Plan in advance That day When Americans decide what to make for dinner Pie Chart At the last minute 37% Dont know 1% Plan in advance 25% That day 37% 120...
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Solutions_to_selected_problems_Chpt_2_Part_1 - Solutions to...

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