SOLUTION: a manufacturer of light bulbs claims that its new light bulb has a mean life of 1,000 hours with a standard deviation of 80 hours. Assume the lifetimes of the bulbs are normally di
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Question 364268: a manufacturer of light bulbs claims that its new light bulb has a mean life of 1,000 hours with a standard deviation of 80 hours. Assume the lifetimes of the bulbs are normally distributed. What is the probability that a randomly chosen bulb will last more than 1,100 hours?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Find the z score,
Once you have z, then find P(z).
.
.
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