X M MM HT HT HT T + X A https://ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253... E S to G Google mySNHU Login ( Pennsylvania's Pand... Course Hero S StuDocu SSA Social Security Adm.. Medical Marijuana. Fast + free store pic.. Other favorites 8-3 Homework: Chapter 8 (Sections 8.1 through 8.5) Saved Help Save & Exit Submit Check my work 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 / = 21.00 mpg and a standard deviation of O = 3.25 mpg. 5 (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 points places.) eBook Standard error of X Hint Ask Print References (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 Mc Graw Hill Type here to search X 5:18 PM 50'F Clear ~ 9 0 12/17/2021