QUESTION 7 7) Use the following hypothesis testing question to answer questions 7-9 An automobile manufacturer claims that their leading compact car averages 36 mpg in the city. The population standard is 4mpg for city driving. Suppose a city police department purchases 64 cars from this auto manufacturer. If these cars were driven exclusively under city conditions and averaged 33 mpg can one argue that the manufacturer's claim is too high at 5% Determine the alternative hypothesis O a. Ha: ( 36 O c. Ha: | # 36 O d. none of the choices QUESTION 8 8) Referring to question 7, Determine the z-score of the study result O a. +6 Ob.-6 O c. none of the choices O d. .75 QUESTION 9 9) Referring to question 7, What type of hypothesis test would this be? O a. a 2 tailed test with a decision rule of + 1.96 O b. a 1 tailed test on the left with a decision rule of -1.65 O c. a 1 tailed test on the right with a decision rule of +1.65 O d. none of the choices