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niveles de autoridad  costo total de una partida determinada
 X  Y
 Observaciones  Horas de reparacion   costo total de mantenimiento   X^2  XY
 1  1500 $                                                          6,350.00  2250000 $                9,525,000.00
 2  2500 $                                                          7,625.00  6250000 $              19,062,500.00
 3  2250 $                                                          7,275.00  5062500 $              16,368,750.00
 4  3500 $                                                        10,350.00  12250000 $              36,225,000.00
 5  3000 $                                                          9,375.00  9000000 $              28,125,000.00
 6  3100 $                                                          9,200.00  9610000 $              28,520,000.00
 7  3300 $                                                          8,950.00  10890000 $              29,535,000.00
 8  2000 $                                                          7,125.00  4000000 $              14,250,000.00
 9  1700 $                                                          6,750.00  2890000 $              11,475,000.00
 10  2100 $                                                          7,500.00  4410000 $              15,750,000.00
 11  2750 $                                                          8,900.00  7562500 $              24,475,000.00
 12  2900 $                                                          9,400.00  8410000 $              27,260,000.00
 $                                       30,600.00 $                                                        98,800.00  82585000 $            260,571,250.00



 b  $                                                 1.89 costo variable
 $                             103,575,000.00
 $                               54,660,000.00


 a  $                                                          3,401.35 costo fijo
 $                                      185,917,750,000.00
 $                                                54,660,000.00
 Y= a + bx  $              8,517.57
      costo total
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