Walker Accounting software is marketed to small accounting f

Walker Accounting software is marketed to small accounting firms throughout the U.S and Canada. Owner George walker has decided to out source the company help desk and is considering three providers: Manila call center (philippines), Delhi services (India) and Moscow Bell (Russia).

Solution

Manila= 0.5*5+0.1*5+0.2*4+0.2*5=2.5+0.5+0.8+1=4.8

Delhi= 0.5+1+0.1*5+0.2*3+0.2*6= 0.5+0.5+0.6+1.2=2.8

Moscow= 0.5*9+0.1*2+0.2*6+0.2*6= 4.5+0.2+1.2+1.2= 7.1

among these 3 units Moscow unit is better than the two units