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statistics for business and economics 11th edition chapter 2 - exercise solution

# Statistics for business and economics 11th edition chapter 2 - exercise solution

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Descriptive Statistics: Tabular and Graphical Methods Chapter 2 Descriptive Statistics: Tabular and Graphical Methods Solutions: 2. a. 1 - (.22 + .18 + .40) = .20 b. .20(200) = 40 c/d. Class Frequency Percent Frequency A .22(200) = 44 22 B .18(200) = 36 18 C .40(200) = 80 40 D .20(200) = 40 20 Total 200 100 4. a. Qualitative. b. Show Frequency Percent Frequency CSI 18 36% ER 11 22% Friends 15 30% Raymond 6 12% Total: 50 100 0 2 4 6 8 10 12 14 16 18 20 CSI ER Friends Raymond TV Show Frequency 2 - 1

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Chapter 2 d. CSI had the largest viewing audience. Friends was in second place. 6. a. Network ABC CBS FOX 1 2% NBC 17 34% Total 50 100% 0 2 4 6 8 10 12 14 16 18 ABC CBS FOX NBC Network Frequency b. CBS and NBC are tied, each with 17 of the top rated television shows. ABC is a close third with 15. The fact that the three networks are so close is surprising. FOX, the newest television network, does not have the history to compete with the other three networks in term of the top rated shows in television history. 9. a/b. Reason for CEO Frequency Percent Frequency Built 14 54% Hired 4 15% Inherited 8 31% Total 26 100% c. Construct the bar graph 0 2 4 6 8 10 12 14 16 Built Hired Inherited Reason d. 31% or almost one-third of the respondents became the CEO of a family- owned business because they inherited the business. The majority of CEOs of family-owned business became a CEO (54%) because they built the business themselves. 12. Class Cumulative Frequency Cumulative Relative Frequency less than or equal to 19 10 .20 less than or equal to 29 24 .48 less than or equal to 39 41 .82 less than or equal to 49 48 .96 less than or equal to 59 50 1.00 16. a. The histogram of the adjusted gross incomes is as follows. 2 - 2 Friends 30% Raymond 12% ER 22% CSI 36%
Descriptive Statistics: Tabular and Graphical Methods 0 10 20 30 40 50 60 70 0-24 25-49 50-74 75-99 100-124 125-149 Adjusted Gross Income (\$1000) Frequency

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Statistics for business and economics 11th edition chapter 2 - exercise solution

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