Flashlight bulbs manufactured by a certain company are sometimes defective. a. If 5% of all such bulbs

Question:

Flashlight bulbs manufactured by a certain company are sometimes defective.

a. If 5% of all such bulbs are defective, could the techniques of this section be used to approximate the probability that at least five of the bulbs in a random sample of size 50 are defective?

If so, calculate this probability; if not, explain why not.

b. Reconsider the question posed in Part (a) for the probability that at least 20 bulbs in a random sample of size 500 are defective.

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a No since np 50005 25 10 b Now ...View the full answer

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