Tuesday

September 30, 2014

September 30, 2014

Posted by **Jamey** on Sunday, January 13, 2008 at 5:23pm.

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....

- Data Management -
**Emily**, Sunday, January 13, 2008 at 5:31pmI probably read this problem wrong, but wouldn't (a) be a trick question? If you take 15% defected pencils out of however many regular pencils, that particular sample will be all defected, wouldn't it? Like I said, I probably read it wrong, so plz wait for a different answer. :-)

- Data Management -
**Anonymous**, Sunday, January 13, 2008 at 5:33pmBesides, did you realize you posted the same question within less than an hour? Please be patient with these people-- they're doing their best.

- Data Management -

**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 - The school store open on the first day of school with 30 notebooks and 18...

MATH PLEASE HELP!!!!! - Carmen bought 3 box of pencils. Each box has the same ...

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 ...

3rd grade - In a box of colored pencils, there are 5 fewer red pencils than ...

math - A box contains 4 red pencils, 3 blue pencils, and 3 yellow pencils. What ...

math - Pencils come in cartons of 24 boxes.A school bought 50 cartons of pencils...

math - Dylan loved pencils. He had a whole box full of pencils in different ...