Hi all. Ive been trying to get this for weeks now. i have an mm1 Que with 4 services provided. values are
mean service time probability service is required
the lambda is 11.75 per hour and these values are in minutes so i work out the mu is 11.4667? but this gives me a negative value every time i plug it into the formula. Any advice??
this is the formula for no one in the Que