MarkLines is an online portal (www.marklines.com) that reports automotive industry data. The table below shows the number of cars sold in the United States from January to November in 2017 and 2018. The top 22 manufacturers, plus others, are listed here. Sales data often is reported in this way to compare current sales to last year’s sales.     Car Sales   Manufacturer Jan.-Nov. 2017   Jan.-Nov. 2018   GM (Est.) 2,691,493   2,654,568   Ford 2,334,290   2,265,590   Toyota 2,211,533   2,205,762   Fiat Chrysler 1,887,430   2,038,684   Honda 1,492,112   1,449,713   Nissan 1,455,238   1,345,157   Hyundai 621,961   612,225   Subaru 584,614   615,594   Kia 546,629   542,245   Mercedes (includes Sprinter) 332,990   318,012   BMW 271,432   276,657   VW 309,395   322,017   Mazda 262,577   274,455   Audi 199,534   200,558   Tesla (Est.) 40,320   106,050   Land Rover 66,759   81,526   Volvo 71,828   89,437   Mitsubishi 95,185   109,088   Porsche 51,507   53,116   MINI 42,494   40,887   Jaguar 36,180   27,021   Others 18,901   17,251   smart 2,905   1,154     Click here for the Excel Data File a. Using computer software, compare 2017 sales to the 2018 sales for each manufacturer by computing the difference. Make a list of the manufacturers that increased sales compared to 2017; make a list of manufacturers that decreased sales. Which manufacturers are in the top five with increased sales? Which manufacturers are in the bottom five with decreased sales? (Enter values in decreasing order and negative values with a minus sign.)     b. Using computer software, compare 2017 sales to 2018 sales for each manufacturer by computing the percentage change in sales. Make a list of the manufacturers in order of increasing percentage changes. Which manufacturers are in the top five in percentage change? Which manufacturers are in the bottom five in percentage change? (Enter values in decreasing order and negative values with a minus sign. Round percentage answers to 1 decimal place.)     c-1. Using computer software, first sort the data using the 2018 year-to-date sales. Then, design a bar graph to illustrate the 2017 and 2018 year-to-date sales for the top 10 manufacturers and select the most appropriate graph below.     Bar Graph A Bar Graph B Bar Graph C       multiple choice 1 Bar Graph A Correct Bar Graph B Bar Graph C

Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter5: Network Models
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MarkLines is an online portal (www.marklines.com) that reports automotive industry data. The table below shows the number of cars sold in the United States from January to November in 2017 and 2018. The top 22 manufacturers, plus others, are listed here. Sales data often is reported in this way to compare current sales to last year’s sales.
 

  Car Sales  
Manufacturer Jan.-Nov.
2017
  Jan.-Nov.
2018
 
GM (Est.) 2,691,493   2,654,568  
Ford 2,334,290   2,265,590  
Toyota 2,211,533   2,205,762  
Fiat Chrysler 1,887,430   2,038,684  
Honda 1,492,112   1,449,713  
Nissan 1,455,238   1,345,157  
Hyundai 621,961   612,225  
Subaru 584,614   615,594  
Kia 546,629   542,245  
Mercedes (includes Sprinter) 332,990   318,012  
BMW 271,432   276,657  
VW 309,395   322,017  
Mazda 262,577   274,455  
Audi 199,534   200,558  
Tesla (Est.) 40,320   106,050  
Land Rover 66,759   81,526  
Volvo 71,828   89,437  
Mitsubishi 95,185   109,088  
Porsche 51,507   53,116  
MINI 42,494   40,887  
Jaguar 36,180   27,021  
Others 18,901   17,251  
smart 2,905   1,154  
 


Click here for the Excel Data File

a. Using computer software, compare 2017 sales to the 2018 sales for each manufacturer by computing the difference. Make a list of the manufacturers that increased sales compared to 2017; make a list of manufacturers that decreased sales. Which manufacturers are in the top five with increased sales? Which manufacturers are in the bottom five with decreased sales? (Enter values in decreasing order and negative values with a minus sign.)

 



 



b. Using computer software, compare 2017 sales to 2018 sales for each manufacturer by computing the percentage change in sales. Make a list of the manufacturers in order of increasing percentage changes. Which manufacturers are in the top five in percentage change? Which manufacturers are in the bottom five in percentage change? (Enter values in decreasing order and negative values with a minus sign. Round percentage answers to 1 decimal place.)

 



 



c-1. Using computer software, first sort the data using the 2018 year-to-date sales. Then, design a bar graph to illustrate the 2017 and 2018 year-to-date sales for the top 10 manufacturers and select the most appropriate graph below.
 

 

Bar Graph A Bar Graph B Bar Graph C
     


multiple choice 1

  • Bar Graph A Correct
  • Bar Graph B
  • Bar Graph C

 

 

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ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,