Question
The highway fuel economy of a 2016 Toyota 4Runner 2WD 6-cylinder 4-L automatic 5-speed using regular gas is a normally distributed random variable 17 mpg
The highway fuel economy of a 2016 Toyota 4Runner 2WD 6-cylinder 4-L automatic 5-speed using regular gas is a normally distributed random variable 17 mpg to 22 mpg (a) Estimate the standard deviation using Method 3(the empirical Rule for a normal distubution) from table 8.8 (b.) What sample size is needed to estimate the mean with 90 percent confidence and an error of +- 0.25 mpg
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Finite Mathematics and Its Applications
Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair
12th edition
978-0134768588, 9780134437767, 134768582, 134437764, 978-0134768632
