What percent of light bulbs will you have to replace

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You work in the quality control office for a company that manufactures fluorescent light bulbs. Your company offers a 4-year (1461 day) warranty on these bulbs. The average life span of your bulbs is 1600 days with a standard deviation of 90 days. What percent of light bulbs will you have to replace?

Reference no: EM132134572

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