In the recent past, the production output has been between 10,000 and 20,000 units per week 75% of the time; however, it may fall below 10,000 or go above 20,000 more frequently in the future. The production manager wants to use E(output) to make a decision about upgrading automation soft­ware. Identify at least two additional pieces of in­formation that must be obtained or assumed to finalize the output information for this use.

What will be an ideal response?


Needed or assumed information to calculate an expected value:

1. Treat output as discrete or continuous variable
2. If discrete, center points on cells, e.g., 8000, 15,000, and 18,000 units per week
3. Probability estimates for < 10,000 and /or > 20,000 units per week

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