A report on airline quality included the accompanying data on the on-time arrival percentage and the number of complaints filed per100,000 passengers for U.S. airlines.AirlineAlaskaAmericanDeltaEnvoy AirExpress JetFrontierHawaiianJetBlueSkyWestSouthwestSpiritUnitedVirgin AmericaOn-Time+Arrival Percentage86808674787388768080687881Complaints per100,000 Passengers0.402.14complaints per 100,000complaints per 100,0000.701.610.993.890.871.150.820.55Not reported2.73The report did not include data on the number of complaints for two of the airlines. Use the given data from the other airlines to fit the leastsquares line. (Round your answers to four decimal places.)ŷ =Not reportedUse the least squares line to predict the number of complaints per 100,000 passengers for Spirit and Virgin America. (Round your answers to twodecimal places.)SpiritVirgin America

The question is about regression Given : To find : 1 ) regression equation 2 ) Pred. no. of…

Answered: A report on airline quality included…

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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3. A consumer panel tested nine makers of air conditioners for overall quality. The ranks assigned by the panel and the suggested retail prices were as follows. SUGGESTED PRICE (Php) 14, 800 13, 950 15, 750 15, 500 15, 100 15, 450 14, 000 14, 650 14, 200 MANUFACTURER PANEL RATING 6 9 8 1 7 4 3 Is there a significant relationship between the quality and the price of an air conditioner? ABCDEECHI
Listed below are the 35 members of the Metro Toledo Automobile Dealers Association. We would like to estimate the mean revenue from dealer service departments. The members are identified by numbering them 00 through 34. ID Number Dealer 00 01 02 03 04 05 06 07 08 09 10 11 Dave White Acura Autofair Nissan Autofair Toyota-Suzuki George Ball's Buick GMC York Automotive Group Bob Schmidt Chevrolet Bowling Green Lincoln Brondes Ford Brown Honda Brown Mazda Charlie's Dodge Thayer Chevrolet/Toyota ID Number 12 13 14 15 16 17 18 19 20 21 22 23 Dealer Spurgeon Chevrolet Motor Dunn Chevrolet Don Scott Chevrolet Dave White Chevrolet Co. Dick Wilson Infiniti Doyle Buick Franklin Park Lincoln Genoa Motors Great Lakes Ford Nissan Grogan Towne Chrysler Hatfield Motor Sales Kistler Ford, Inc. ID Number 24 25 26 27 28 29 30 31 32 33 34 Dealer Lexus of Toledo Mathews Ford Oregon, Inc. Northtown Chevrolet Quality Ford Sales, Inc. Rouen Chrysler Jeep Eagle Mercedes of Toledo Ed Schmidt Jeep Eagle…
Age and Gender. The U.S. Census Bureau publishes census data on the resident population of the United States in Current Population Survey. According to that document, 7.3% of male residents are in the age group 20–24 years. a. If no association exists between age group and gender, what percentage of the resident population would be in the age group 20–24 years? Explain your answer.b. If no association exists between age group and gender, what percentage of female residents would be in the age group 20–24 years? Explain your answer.c. There are about 158 million female residents of the United States. If no association exists between age group and gender, how many female residents would there be in the age group 20–24 years?d. In fact, there are some 10.9 million female residents in the age group 20–24 years. Given this number and your answer to part (c), what do you conclude?
17. Answer the following questions for two stat classes. Test Scores for Class A 99; 56; 78; 55; 32; 90; 80; 81; 56; 59; 45; 77; 85; 84; 70; 72; 68; 32; 79; 90 Test Scores for Class B 99; 78; 68; 83; 81; 89; 88; 76; 65; 45; 98; 90; 80; 85; 84; 79; 78; 98; 90; 79; 81; 324 a. Create a box plot for each set of data. Use one number line for both box plots. b. Which box plot has the widest spread for the middle 50% of the data (the data between the first and third quartiles)? What does this mean for that set of data in comparison to the other set of data?
The following data (in thousands of euros) represent the net annual income for a sample of taxpayers in U.S. 47,55,18,24,27,41,50,38,33,29,15,77,64,22,19,35,39,41 67,55,121,77,80,34,41,48,60,30,22,28,84,55,26,105,62, 30,17,23,31,28,56,64,88,104,115,39,125,18,21,30,57,40 38,29,19,46,40,49,72,70,37,39,18,22,29,52,94,86,23,36 Graph this data set in a frequency histogram having 5 class intervals. Graph this data set in a frequency histogram having 10 class intervals. Which histogram do you think is more informative? Why?
Is there a relation between incidents of child abuse and number of runaway children? A random sample of cities (over 10,000 population) gave the following information about the number of reported incidents of child abuse and the number of runaway children. (Reference: Federal Bureau of Investigation, U.S. Department of Justice.) City 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Abuse cases 113 33 41 60 52 99 31 56 15 67 106 59 45 74 84 Runaways 648 188 285 687 421 590 284 277 162 473 600 432 317 580 592 Use a 1% level of significance to test the claim that there is a monotone-increasing relationship between the ranks of incidents of abuse and number of runaway children. (a) Rank-order abuse using 1 as the largest data value. Also rank-order runaways using 1 as the largest data value. Then construct a table of ranks to be used for a Spearman rank correlation test. City Abuse CasesRank x RunawaysRank y d = x - y d2 123456789101112131415 Σd2 = (b) What is the level of…
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information is also recorded on males/females in the community. Please use the information to answer the question below. Population Deaths 238 Deaths due to Jingle Jangle 143 Deaths due to Fizzle Rocks 45 Deaths due to Other Causes Males 251,480 40.0 per 100,000 56.86 per 100,000 22.94 per 100,000 79.8 per 100,000 50 Females 248,520 221 57 21 143 What is the cause-specific mortality rate pertaining to deaths from Jingle Jangle among the population living in Riverdale this year?
Provide a brief description to the histogram below
The average annual premium for automobile insurance in the U.S. is $1,503. The following annual premiums ($) are representative of the website's findings for the state of Michigan. $1,905 $2,725 $2,677 $2,600 $2,962 $2,370 $2,545 $2,529 $2,442 $2,312 Assume the population is approximately normal. $2,184 $2.332 $3,112 $2,545 $2,525 $2.981 $2.627 $2.857 $2.675 $2.115 a) Provide a point estimate of the mean annual automobile insurance premium in Michigan (SHOW RESULTS, but you may use Excel, b) Develop a 95% confidence interval for the mean annual automobile insurance premium in Michigan. (SHOW WORK, but you may use Excel for key calculations; c) Does the 95% confidence interval for the annual automobile insurance premium in Michigan include the national average for the U.S.? What is your interpretation of the relationship between auto insurance premiums in Michigan and the national average? 4
3. Consider a data set for which the "individuals" are restaurants in King County, Washington. a. Create a categorical variable that could be used to describe an individual restaurant in this data set. b. Create a quantitative variable that could be used to describe an individual restaurant in this data set and clearly state what units your variable would have.
The personnel files of all eight employees at the Pawnee location of Acme Carpet Cleaners Inc. revealed that during the last 6-month period they lost the following number of days due to illness: 5 5 4 4 1 2 All eight employees during the same period at the Chickpee location of Acme Carpets revealed they lost the following number of days due to illness: Range Mean 2 1 0 10 2 2 3 0 0 6 Click here for the Excel Data File Required: a. Calculate the range and mean for the Pawnee location and the Chickpee location. (Round the "Mean" to 2 decimal places.) Pawnee location O Chickpee location O Pawnee location Chickpee location b-1. Based on the data which location has fewer lost days?

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