The highway fuel economy of a 2022 Hyundai Sonata automatic 5-speed using a fuel is normally distributed with a unknown standard deviation. If a sample data of 10 trips yields a mean of 28.0 mpg and a sample standard deviation of 1.23 mpg, find the 99 percent confidence interval for the true mean mpg. (Note: mpg represents 'miles per gallon', which is used as a measure of fuel economy) GL| 70| 28.0 mpg On HEARTXL 1.23 mpg 271 6/71. O| CCH 2 71 wmpg all CHol 99% 217212 76121. (2172 mpgt mile per gallon (Flot) lolAt tolotzto lo (Please fill in the two blanks. For example, your answer for the confidence interval would be like 23.123 + 3.213 ) (13|72 12 9) $ 4 2011 49140x12. Q1 01 23. 123 + 3.213 9/ 20| ~1317219 Hole+ +