145 PM Sar Feb 26 A ezto.mheducation.com Mappendix_d.jpg 945-2,129 pixels neip Mappendix_d.jpg 9 Suome O M Question 3-8-3 Homework: Cha.. 2ave & EKIE -2 SmartBook Assignment: Cha. OHome- Students uT...

Extracted text: 145 PM Sar Feb 26 A ezto.mheducation.com Mappendix_d.jpg 945-2,129 pixels neip Mappendix_d.jpg 9 Suome O M Question 3-8-3 Homework: Cha.. 2ave & EKIE -2 SmartBook Assignment: Cha. OHome- Students uT ew Criapier o EcIS o.ruwouuro. E Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to questie 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 u = 24.50 mpg and a standard deviation of o = 3.50 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.) points Answer is complete and correct. Standard error of X 1.1667 O (b) Within what interval would you expect the sample mean to fall, with 95 percent probability? (Round your answers to 4 decimal places.) X Answer is not complete. The interval is from < prev="" 3="" of="" 10="" next="">