Posted by **Jamey** on Sunday, January 13, 2008 at 4:49pm.

The producer of HB pencils has 720 pencils randomly chosen from each day's productions. A defect rate of 15% is acceptable.

a) Assuming that 15% of all manufactured pencils are defective, what is the probability of finding at least 80 percent defective pencials in this sample?

b) If 120 pencils are found to be defective in today's sample, is it likely that the manufacturing process may need improvements? Explain....

## Answer this Question

## Related Questions

- Data Management - The producer of HB pencils has 720 pencils randomly chosen ...
- Data Management - Sorry...i wrote the previous questions wrong.. The producer of...
- MATH PLEASE HELP!!!!! - Carmen bought 3 box of pencils. Each box has the same ...
- Algebra - Gerry had a total of 30 pens and pencils. He decided to trade with his...
- math - Gerry had a total of 30 pens and pencils. He decided to trade with his ...
- Math - I need help on how to explain to my 5th grader how to come up with an ...
- aig math - A bookshop had 60 boxes of pencils. Each box contained 85 pencils. ...
- math - A bookshop had 60 boxes of pencils. Each box contained 85 pencils. Half ...
- math - The school store open on the first day of school with 30 notebooks and 18...
- 3rd grade - In a box of colored pencils, there are 5 fewer red pencils than ...