Lean burgers-what is the capability score of the supplier

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Reference no: EM13842712

Lean Burgers

The management of a large fast food chain evaluates the supplier of their deep-frozen beef patties. The supplier delivers frozen beef patties that according to the specifications have to weigh between 94.5 grams and 95.5 grams. All other beef patties are rejected.

A random sample of 30 patties that were inspected over the course of the last week revealed that the average weight was 95.0 grams. The standard deviation was 0.25 grams.

Questions:

LB1. What is the capability score of the supplier?

LB2. What percentage of the deliveries is likely to be outside the specification limits (outside the interval of [94.5, 95.5])?

LB3. To what level would the supplier have to reduce the standard deviation of the operation if his goal were to obtain a capability score of 1 (i.e., get less than or equal to 0.27 percent defective)?

Reference no: EM13842712

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