Your firm needs special equipment to cut lengths of high strength wire. The acce

Question

Your firm needs special equipment to cut lengths of high strength wire. The acceptable length is between 108 and 112 mm. You have two machine alternatives: Machine A has a setting for 110.0 mm and has a standard deviation of 0.59 mm. Machine B can only be set at 110.90 mm and has a standard deviation of 0.25 mm. Determine the appropriate capability ratio for each machine is either capable If each machine has the same cost, which one would you pick What other considerations or factors might change your decision

Explanation / Answer

Yes, Both the machines are capable as both can cut the desired lengths.

If both machines have same cost, I will choose machine B as it has lower standard deviation compared to machine A.

Other considerations are :-

Cost, vendor, brand, servicability, warranty etc.

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