2Fnewconne activ out. How to Submit Wor- w Workday bayada 5 Rental Insurance | | Dashboard - School. W WDRESBROWSER w Careers - Workday Mosaic ework: Chapter 8 (Sections 8.1 through 8.5) i Saved Help Sav 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 = 20.25 mpg and a standard deviation of o = 2.25 mpg. (a) What is the standard error of X , the mean from a random sample of 16 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of X int fences (b) Within what interval would you expect the sample mean to fall, with 90 percent probability? (Round your answers to 4 decimal places.) The interval is from to