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Video projector light bulbs are known to have a mean lifetime of µ = 100 hours...

Video projector light bulbs are known to have a mean lifetime of µ = 100 hours and standard deviation σ = 75 hours. The university uses the projectors for 9000 hours per semester. (a) (15 points) Use the central limit theorem to estimate the probability that 100 light bulbs will last the whole semester? (b) (10 points) Explain how to estimate the number of light bulbs necessary to have a 1% chance of running out of light bulbs before the semester ends. Don’t actually do the whole computation

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