TALLER EN INGLES EJERCICIO 6

6. A machine shop repair small electronic motors whitch arrive according to a Poisson process at a rate of 12 per week ( 5 – day, 40 – hour workweek ) an analysis of past data indicates that engines can be repaired, on the average, in 2.5 hours, with a variance of 1 hour. How many working hours should a customer expect to leave a motor at the repair shop (not knowing the status of the system)? If the variance of the repair time could be controlled what avariance would reduce the expected waiting time 6.5 hours

	(M/M/1):(DG/∞/∞)
ƛ=	12	rep/sem
µ=	16	rep/sem
Ƿ=	0.750
Lq=	2.250
Wq=	0.188
1	semana	40	horas
0.188	semana		X
	x=	7.52	horas