4.1: Tabular Presentation
Criteria Tata Mercedes Benz Volkswagen Toyota
Price 10 6 7 8
Fuel efficiency 10 8 8 9
Comfort 6 8 8 9
Durability 5 7 9 8
After-sales service 10 9 7 7
Handling 6 8 9 7
To calculate the weighted average for each bus, we multiply the score for each criterion by its weight, and then sum up the values.
Criteria Tata Mercedes Benz Volkswagen Toyota
Price 10*10=100 6*10=60 7*10=70 8*10=80
Fuel efficiency 10*9=90 8*9=72 8*9=72 9*9=81
Comfort 6*7=42 8*7=56 8*7=56 9*7=63
Durability 5*10=50 7*10=70 9*10=90 8*10=80
After-sales service 10*8=80 9*8=72 7*8=56 7*8=56
Handling 6*6=36 8*6=48 9*6=54 7*6=42
Total Score 318 358 398 402
Therefore, the top three buses that should be purchased according to the weighted average method are:
1. Toyota with a total score of 402
2. Volkswagen with a total score of 398
3. Mercedes Benz with a total score of 358
4.2: Motivation for the selected buses:
1. Toyota: It has the highest total score, indicating that it performs well in all criteria. It has high scores in fuel efficiency, comfort, durability, and after-sales service.
2. Volkswagen: It has the second-highest total score, showing good performance in most criteria. It has high scores in fuel efficiency, comfort, durability, and handling.
3. Mercedes Benz: While it has the lowest total score among the selected buses, it still performs well in most criteria. It has high scores in fuel efficiency, comfort, durability, and after-sales service.
Overall, these three buses are the best choices based on their performance in the weighted average method, considering the criteria of price, fuel efficiency, comfort, durability, after-sales service, and handling.