SOLUTION: A stationery store has decided to accept a large shipment of ball-point pens if an inspection of 20 randomly selected pens yields no more than two defective pens. r is 2 Find

Question 927251: A stationery store has decided to accept a large shipment of ball-point pens if an inspection of 20 randomly selected pens yields no more than two defective pens. r is 2
Find the probability that this shipment is accepted if 5% of the total shipment is defective.

Find the probability that this shipment is not accepted of 15% of the total shipment is defective.

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
p(def) = .05, p(good) = .95 , n = 20
Accept if x ≤ 2
P(x ≤ 2) = binomcdf(20, .05, 2) = .9245 0r 92.45%
..........
p(def) = .15 , n = 20
reject if x > 2
P(x > 2) = 1 - P(x ≤ 2) = 1 - binomcdf(20, .15, 2) = 1 - .4049 = .5951 0r 59.51%
......
Using a TI calculator 0r similarly a Casio fx-115 ES plus
RELATED QUESTIONS
A stationary store has decided to accept a large shipment of ball-point pens if an... (answered by Boreal,Alan3354)

Need some help with this question please! I know I have to know 0.9 is what isn't... (answered by Boreal)

How would I compute this problem by hand; what is the formula? A stationary store has... (answered by Theo)

A pharmaceutical company receives large shipments of ibuprofen tablets and uses this... (answered by richwmiller)

An electronics store receives a shipment of 50 flat screen TVs of which 6 are defective.... (answered by rothauserc)

You just received a shiftpment of 11 mp3 players. One mp3 player is defective. You will... (answered by Boreal)

A manufacturer of 35mm cameras knows that a shipment of 37 cameras sent to a large... (answered by stanbon)

The manager of Toy World has decided to accept a shipment of electronic games if none of... (answered by stanbon)

(1) Find the mean and standard deviation of the following probability distribution, (answered by psbhowmick)