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A national consumer organization has conducted a poll among purchasers of desktop and laptop computers concerning the consumer'slevel of satisfactionwith the selection of computersthat were availablefor purchase, prices, knowledge of machines by the sales people helpfulness of sales staff, and the availability of support services and technical advice offeredwhenthere was a problem. Sources of computers were divided into two groups: sales originating at retail/electronic stores or salesfrom the manufacturer-direct stores and Web catalog retailers. For eachtype of sales outlet, a random sample of consumerswho purchased a computer was askedto complete a survey, which consisted of a series of questions and ratingsto be checked off. Scorefor the survey rangedfrom 0 to 100. Each score in the stem plot below representsthe averagefor at least 200 responsesfor that store or Web site. A score of 80 was considered to be customers whowere, on average, very satisfiedwiththe experience. A score of 60 indicated that customerswerefairly satisfied. A score of 40 wouldindicate, on average, dissatisfied customers. NOTE:9124 =92 (stem = tens and leaf = ones) Retail Stores Manufacturer Direct or Web Sales 9 2,4 0, 1, 2 | 1, 2, 3, 5, 6, 7 3, 3, 4, 5, 7, 7,9 4 2, 3, 5, 6 6. 8. 3,7 2 4 Which of the following statements is TRUE? The median of ratings distribution for retail/electronic stores is lower than the median of the ratings distribution for direct and Web sales. O The ranges for the two ratings distributions are the same. 7,

A national consumer organization has conducted a poll among purchasers of desktop and laptop computers concerning the consumer'slevel of satisfactionwith the selection of computersthat were availablefor purchase, prices, knowledge of machines by the sales people helpfulness of sales staff, and the availability of support services and technical advice offeredwhenthere was a problem. Sources of computers were divided into two groups: sales originating at retail/electronic stores or salesfrom the manufacturer-direct stores and Web catalog retailers. For eachtype of sales outlet, a random sample of consumerswho purchased a computer was askedto complete a survey, which consisted of a series of questions and ratingsto be checked off. Scorefor the survey rangedfrom 0 to 100. Each score in the stem plot below representsthe averagefor at least 200 responsesfor that store or Web site. A score of 80 was considered to be customers whowere, on average, very satisfiedwiththe experience. A score of 60 indicated that customerswerefairly satisfied. A score of 40 wouldindicate, on average, dissatisfied customers. NOTE:9124 =92 (stem = tens and leaf = ones) Retail Stores Manufacturer Direct or Web Sales 9 2,4 0, 1, 2 | 1, 2, 3, 5, 6, 7 3, 3, 4, 5, 7, 7,9 4 2, 3, 5, 6 6. 8. 3,7 2 4 Which of the following statements is TRUE? The median of ratings distribution for retail/electronic stores is lower than the median of the ratings distribution for direct and Web sales. O The ranges for the two ratings distributions are the same. 7,

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Anational consumer organization has conducted a poll among purchasers of desktop and laptop computers concerning the consumer'slevel of satisfactionwith the selection of computersthat were availablefor purchase, prices, knowledge of machines by the sales people helpfulness of sales staff, and the availability of support services andtechnical advice offeredwhenthere was a problem. Sources of computerswere divided into two groups: sales originating at retail/electronic stores or salesfrom the manufacturer-direct stores andWebcatalog retailers. For eachtype of sales outlet, arandom sample of consumerswho purchased a computer was asked to complete a survey, which consisted of a series of questions and ratingsto be checked off. Scorefor the survey ranged from 0 to 100. Each score in the stem plot belowrepresents the averagefor at least 200 responsesfor that store or Web site. A score of 80 was consideredto be customerswhowere, on average, very satisfiedwith the experience. A score of 60 indicated that customerswere fairly satisfied. A score of 40 wouldindicate, on average, dissatisfied customers. NOTE:912- =92 (stem = tens and leaf = ones) Retail Stores Manufacturer Direct or Web Sales 9. 2, 4 0,1,2 1, 2, 3, 5, 6, 7 8. 3, 3, 4, 5, 7, 7,9 7 4 2, 3, 5, 6 3,7 4 Which of the following statements is TRUE? The median of ratings distribution for retail/electronic stores is lower than the median of the ratings distribution for direct and Web sales. The ranges for the two ratings distributions are the same. The rating distribution for retailfelectronic stores is positively skewed. The IQR for the ratings distribution of retail/electronic stores is equal to the IQR for the ratings for manufacturer direct and Web sales. 6. 2.
Transcribed Image Text:Anational consumer organization has conducted a poll among purchasers of desktop and laptop computers concerning the consumer'slevel of satisfactionwith the selection of computersthat were availablefor purchase, prices, knowledge of machines by the sales people helpfulness of sales staff, and the availability of support services andtechnical advice offeredwhenthere was a problem. Sources of computerswere divided into two groups: sales originating at retail/electronic stores or salesfrom the manufacturer-direct stores andWebcatalog retailers. For eachtype of sales outlet, arandom sample of consumerswho purchased a computer was asked to complete a survey, which consisted of a series of questions and ratingsto be checked off. Scorefor the survey ranged from 0 to 100. Each score in the stem plot belowrepresents the averagefor at least 200 responsesfor that store or Web site. A score of 80 was consideredto be customerswhowere, on average, very satisfiedwith the experience. A score of 60 indicated that customerswere fairly satisfied. A score of 40 wouldindicate, on average, dissatisfied customers. NOTE:912- =92 (stem = tens and leaf = ones) Retail Stores Manufacturer Direct or Web Sales 9. 2, 4 0,1,2 1, 2, 3, 5, 6, 7 8. 3, 3, 4, 5, 7, 7,9 7 4 2, 3, 5, 6 3,7 4 Which of the following statements is TRUE? The median of ratings distribution for retail/electronic stores is lower than the median of the ratings distribution for direct and Web sales. The ranges for the two ratings distributions are the same. The rating distribution for retailfelectronic stores is positively skewed. The IQR for the ratings distribution of retail/electronic stores is equal to the IQR for the ratings for manufacturer direct and Web sales. 6. 2.
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