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Observaciones Costo total de mantenimiento (Y) Horas de reparación (X) XY X^2
1 $ 6,350.00 1500 $ 9,525,000.00 2250000
2 $ 7,625.00 2500 $ 19,062,500.00 6250000
3 $ 7,275.00 2250 $ 16,368,750.00 5062500
4 $ 10,350.00 3500 $ 36,225,000.00 12250000
5 $ 9,375.00 3000 $ 28,125,000.00 9000000
6 $ 9,200.00 3100 $ 28,520,000.00 9610000
7 $ 8,950.00 3300 $ 29,535,000.00 10890000
8 $ 7,125.00 2000 $ 14,250,000.00 4000000
9 $ 6,750.00 1700 $ 11,475,000.00 2890000
10 $ 7,500.00 2100 $ 15,750,000.00 4410000
11 $ 8,900.00 2750 $ 24,475,000.00 7562500
12 $ 9,400.00 2900 $ 27,260,000.00 8410000
$ 98,800.00 30600 $ 260,571,250.00 82585000
n= 12
∑X= 30600
∑Y= $ 98,800.00
∑XY= $ 260,571,250.00
∑X^2= 82585000
103575000
54660000
b= 1.894895719
a= 3401.34925
Y= $ 8,517.57
