Consumer Reports provided overall customer satisfaction scores for AT&T, Sprint, T-Mobile, and Verizon cell phone services in major metropolitan areasthroughout the United States. The rating for each service reflects the overall customer satisfaction considering a variety of factors such as cost, connectivityproblems, dropped calls, static interference, and customer support. A satisfaction scale from 0 to 100 was used with 0 indicating completely dissatisfied and 100indicating completely satisfied. The ratings for the four cell phone services in 20 metropolitan areas are as shown.Metropolitan AreaAtlantaBostonChicagoDallasDenverDetroitJacksonvilleLas VegasLos AngelesMiamiMinneapolisPhiladelphiaPhoenixSan AntonioSan DiegoSan FranciscoSeattleSt. LouisTampaWashingtonAT&T7877798379818180747676807683777476828180Sprint74727373 75 7372767377747474 73 75 7 75 74 71 767677T-Mobile7982788281858382768183798483808182828179Verizon8784858685878989868885868988878385878784 No, the data do not contain outliers. Vd. Repeat parts (b) and (c) for the other three cell phone services.Smallest valueFirst quartile (to 2 decimals)Median (to 1 decimal)Third quartile (to 2 decimals)AT&TMLargest valueAre there outliers for AT&T? Explain.Limits for AT&T(to 1 decimal)>No, the data do not contain outliers.Are there outliers for Sprint? Explain.Limits for Sprint(to 2 decimals)No, the data do not contain outliers.Are there outliers for Verizon? Explain.Limits for Verizon (to 2 decimals)X*3*X*andSprintSOUNxXandand*#2*XxVerizon2000xNo, the data do not contain outliers. ✓e. Which of the following boxplots accurately displays the data set?x

Answered: Consumer Reports provided overall…

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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The Census Bureau Web site gives several choices for "average income" in its historical income data. In 2006, the median income of American households was $48,201. The mean household income was $66,570. The median income of families was $58,407, and the mean family income was $77,315. The Census Bureau says, “Households consist of all people who occupy a housing unit. The term ‘family’ refers to a group of two or more people related by birth, marriage, or adoption who reside together.” Identify the reason for mean incomes for households being higher than median incomes for households.
The price drivers pay for gasoline often varies a great deal across regions throughout the United States. The following data show the price per gallon for regular gasoline for a random sample of gasoline service stations for three major brands of gasoline (Shell, BP, and Marathon) located in eleven metropolitan areas across the upper Midwest region (OhioGasPrices.com website, March 18, 2012). Click on the datafile logo to reference the data. DATA file Shell BP Metropolitan Area Marathon Akron, Ohio Cincinnati, Ohio Cleveland, Ohio Columbus, Ohio Ft. Wayne, Indiana Indianapolis, Indiana Lansing, Michigan Lexington, Kentucky Louisville, Kentucky Muncie, Indiana Toledo, Ohio 3.77 3.72 3.87 3.76 3.78 3.87 3.89 3.79 3.83 3.83 3.85 3.77 3.83 3.85 3.93 3.84 3.84 4.04 3.87 3.87 3.99 3.79 3.78 3.81 3.69 3.78 3.84 3.84 3.83 3.79 3.79 3.86 3.86 Use a = .05 to test for any significant difference in the mean price of gasoline for the three brands. Round SS to 6 decimals, MS to 6 decimals, F to 2…
An ethical data analyst would be least likely to Multiple Choice check data for accuracy. cite his/her data sources and their limitations. acknowledge sources of financial support. rely on consultants for all calculations.
Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graph
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qdes.c A study was undertaken to see how accurate food labeling for calories on food that is considered "reduced calorie". The group measured the amount of calories for each item of food and then found the percent difference between measured and labeled food. The group also looked at food that was nationally advertised, regionally distributed, or locally prepared. The data is in the following table ("Calories datafile," 2013). Table: Percent Differences Between Measured and Labeled Food National Advertised Regionally Distributed Locally Prepared 2 41 15 -28 46 60 -6 2 250 8 25 145 6 39 6 -1 16.5 80 10 17 95 13 28 3 15 -3 -4 14 -4 34 -18 42 10 5 3 -7 3 -0.5 -10 6 Do the data indicate that at least two of the mean percent differences between the three groups are different?…
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