When considering the fuel efficiency of cars and estimating the miles per gallon a car gets, how large a sample is required to estimate the mean miles per gallon within 0.5 miles per gallon with 95%confidence? Note: The sample standard deviation is s=2.92 mpg.
Added by Nicholas G.
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The goal is to determine the sample size needed to estimate the mean miles per gallon (mpg) a car gets within a margin of error of 0.5 mpg with 95% confidence. We are given the sample standard deviation, s = 2.92 mpg. Show more…
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