Home » Students B 8-1 Final Exam MAT-133-X3 X E 8-1 Final Exam O A https://newconnect.mheducation.com/flow/connect.html 8-3 Homework: Chapter 8 (Sect X 110% ... rk: Chapter 8 (Sections 8.4 throug.. i Saved Help Save & Exit Submlt Check my work 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 u = 25.25 mpg and a standard deviation of o =2.00 mpg. (a) What is the standard error of X , the mean from a random sample of 9 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of X (b) Within what interval would you expect the sample mean to fall, with 95 percent probability? (Round your answers to 4 decimal places.) The interval is from to 3 of 10 E Next > 7:51 PM Prev 3/1/2020

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