SOLUTION: From a batch of 3000 light bulbs, 100 were selected at random and tested. If 5 of the light bulbs in the sample were found to be defective,how many defective light bulbs would be e

Algebra.Com
Question 879929: From a batch of 3000 light bulbs, 100 were selected at random and tested. If 5 of the light bulbs in the sample were found to be defective,how many defective light bulbs would be expected in the entire batch?
A. 15
B. 60
C. 150
D. 300
E. 600

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
p(def) = 5/100 = .05,
how many defective light bulbs would be expected in the entire batch: = 150

RELATED QUESTIONS

It is thought that, on average, 3% of light bulbs produced by a certain company last for... (answered by ewatrrr)
A sample if 220 light bulbs contained 5 defective bulbs. How many bulbs would you expect... (answered by rfer)
A company manufactures light bulbs and wants to advertise a me an life of 1200 hours for... (answered by ewatrrr)
In a batch of a hundred light bulbs there are 5 bad bulbs. Inspectors inspects 10 at... (answered by Fombitz)
A a quality control inspector examined 100 light bulbs and found 7 defective.at this rate (answered by Theo)
In a batch of 10 light bulbs, two are known to be defective. If four bulbs are drawn at... (answered by scott8148)
in a lot of 100 light bulbs, there are 4 bad bulbs. An inspector inspects 10 bulbs... (answered by Fombitz)
A manufacturer claims that the mean lifetime, u of its light bulbs is 43 months. the... (answered by Boreal)
Light bulbs from production lines are tested. Of the 150 bulbs tested, 7 were detective. (answered by ewatrrr)