1. ## defect rate question

I have come across a problem that I can not figure out how to answer.

The Patel Manuafacturing Company allows for a defect rate of 0.5% on its producation line. The defect average for last week was 6 items out of 1,800. What is the difference between the allowed defect rate and the defect average for last week?

2. Originally Posted by mathtutor
I have come across a problem that I can not figure out how to answer.

The Patel Manuafacturing Company allows for a defect rate of 0.5% on its producation line. The defect average for last week was 6 items out of 1,800. What is the difference between the allowed defect rate and the defect average for last week?

Defect rate last week is

$\frac{6}{1800} \times 100 \ =(1/3) \% =0.33333.. \%$

difference in rates:

$\frac{6}{19}= 0.5-0.3333..=0.1666.. \%$

(possibly negative if you want -ve to denote lower than allowed rate)

RonL