Show me the steps to solve the average battery life of 3000 manufactured cell phones is recorded and normally distrubuted. the mean battery life is 14 hours with a standard deviation of 1.0 hours. Find the number of phones who have a battery life in the 15 to 17 range. round your answer to the nearest integer.
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The battery life of the cell phones is normally distributed with a mean (μ) of 14 hours and a standard deviation (σ) of 1.0 hours. We need to find the number of phones with battery life between 15 and 17 hours. Show more…
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