Do Homework - 9-2 MyStatLab: | X Homework Help - Q&A from On X Home X Home - > Students X + X C mathxl.com/Student/PlayerHomework.aspx?homeworkld=595949057&questionld=5&flushed=false&cld=6485921&back=DoAs... P G Update Apps DV Events | Clarkstown.. Sign in to your acco... gt Growthink's BusinessNHU Login Reading list O SCS-501-R4230 Foundations in Statistics 21TW4 Christine Williams & | 07/17/217:45 PM Homework: 9-2 MyStatLab: Module Nine Homework Save Score: 0 of 1 pt 12 of 20 (9 complete) HW Score: 28.75%, 5.75 of 20 pts 9.2.43 Tutoring Question Help Assume that the average gas mileage of all automobiles is 20.2 miles per gallon. For a random sample of 40 sport utility vehicles (SUVs), the mean gas mileage is 19.2 miles per gallon with a standard deviation of 3.9 miles per gallon. Test the claim that the mean mileage of all SUVs is less than 20.2 miles per gallon. Use a 0.05 significance level. State the null and alternative hypotheses. A. Ho: H = 20.2 miles per gallon O B. Ho: H = 20.2 miles per gallon > Ha: H 20.2 miles per gallon 64% O C. Ho: H # 20.2 miles per gallon O D. Ho: H = 20.2 miles per gallon Ha: H = 20.2 miles per gallon Ha: H # 20.2 miles per gallon Find the z-score. z= (Round to two decimal places as needed.) X Vi More 8:45 PM Enter your answer in the answer box and then click Check Answer. ? 7/17/2021 2 parts remaining Clear All Check