Mathematics, 21.04.2020 17:31 karleebowling316

A firm makes MP3 players. The research department at this firm found that the life of the MP3 players is normally distributed with a mean of 4900 hours and a standard deviation of 450 hours. How many playing hours should a warranty cover if the firm wants 7% of the MP3 players to be below this amount?

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A firm makes MP3 players. The research department at this firm found that the life of the MP3 player...

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