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3 The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distributed random variable

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3 The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distributed random variable with a mean of J = 24.50 mpg and a standard deviation of o = 3.50 mpg. 5 (a) What is the standard error of points X Skipped the mean from a random sample of 9 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of X eBook (b) Within what interval would you expect the sample mean to fall, with 95 percent probability? (Round your answers to 4 decimal places.) Ask The interval is from to Print

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