(h) i. Alpha: 'Number ii. Decision: i Click for List v the null hypothesis. iii. Reason for decision: p-value Click for List v i a iv. Conclusion: There ' Click for List v sufficient evidence to conclude that the mean miles per gallon of non-hybrid sedans is less than that of hybrid sedans. Question 5 Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-pergallon (mpg) than hybrid ones. Suppose that consumers test 288 hybrid sedans and get a mean of 24.75 mpg with a standard deviation of 5.25 mpg. Also, 230 non-hybrid sedans get a mean of 22.75 mpg with a standard deviation of 9 mpg. Suppose that both populations are known to be normal distributed. 12 points Conduct a hypothesis test to evaluate the manufacturers' claim. Test at a 8% level of signicance. Let population 1 denote non-hybrids and population 2 denote hybrids