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# Estimation

Estimation. Learning Objectives. Develop estimation skills. Estimations. Usually, engineers strive for a high accuracy Sometimes, rough estimates are sufficient. These estimates may be in error by 20% or more. Estimations. The accuracy of these estimates depends on:

## Estimation

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### Presentation Transcript

1. Estimation

2. Learning Objectives • Develop estimation skills

3. Estimations • Usually, engineers strive for a high accuracy • Sometimes, rough estimates are sufficient. • These estimates may be in error by 20% or more.

4. Estimations The accuracy of these estimates depends on: 1. Consequences of error, 2. Available reference materials, 3. Time allotted for estimate, 4. Experience with similar problems.

5. Estimation Exercise 1 • Individually spend 2 minutes on the following: • Determine the annual revenue generated from the fines paid by students that illegally park on the Texas A & M campus. • Spend 3 minutes discussing the solution as a team

6. Estimation Exercise 2 (6 min) Dr. Holtzapple has developed a process for converting chicken feathers into chicken feed. Chicken feathers can be obtained for \$20/ton. Processing costs \$80/ton. The feed can be be sold for \$200/ton. As a team, estimate the amount of annual profit if all the feathers in the U.S. were converted to chicken feed.

7. Estimation Exercise 3 • In your team, Front pair: • Determine the maximum number of ping pong balls (not crushed) that could be stored in this classroom. • In your team, Back Pair: • Determine the volume of paint (gallons or liters) to apply one coat to all the painted walls in this classroom.

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