Page 79 - daniela

x y
Observaciones Hrs de reparaciónCosto total de mantenimiento xy x^2
1 1500 $ 6,350.00 $ 9,525,000.00 2250000
2 2500 $ 7,625.00 $ 19,062,500.00 6250000
3 2250 $ 7,275.00 $ 16,368,750.00 5062500
4 3500 $ 10,350.00 $ 36,225,000.00 12250000
5 3000 $ 9,375.00 $ 28,125,000.00 9000000
6 3100 $ 9,200.00 $ 28,520,000.00 9610000
7 3300 $ 8,950.00 $ 29,535,000.00 10890000
8 2000 $ 7,125.00 $ 14,250,000.00 4000000
9 1700 $ 6,750.00 $ 11,475,000.00 2890000
10 2100 $ 7,500.00 $ 15,750,000.00 4410000
11 2750 $ 8,900.00 $ 24,475,000.00 7562500
12 2900 $ 9,400.00 $ 27,260,000.00 8410000
30600 $ 98,800.00 $ 260,571,250.00 82585000

b= 12(260571250)-(30600)(98800) = 103575000.00 $1.89
12(82585000)-(30600)^2 54660000

a=(98800)(82585000)-(30600)(260571250) $185,917,750,000.00 $3,401.35
12(82585000)-(30600)^2 54660000

2700 8517.567691