5.The Ford Motor Company claims that its 2017 model of the Ford Escape averages more than 30 miles per gallon for highway driving.To investigate this claim, which of the following hypotheses is appropriate?

A.H₀: mean> 30;H_a:mean< 30

B.H₀: mean> 30;H_a:mean=30

C.H₀: mean=30;H_a:mean 30

D.H₀: mean=30 ;H_a: mean>30

E.H₀: mean =30 ;H_a: mean<30

6.In an opinion poll, 25% of a random sample of 200 people said that they were strongly opposed to having a state lottery.What is the standard error of the sample proportion?

A.6.12

B.0.06

C.0.25

D.0.0094

E.0.03

7.Which of the following is a true statement?

A.The larger the P-value is, the greater the evidence of something statistically significant

B.When the null hypothesis is rejected,it is because the null hypothesis is not true

C.The P-value of a test is the probability of obtaining a result as extreme as or more extreme than the one obtained when assuming the null hypothesis is true.

D.A very large P-value provides convincing evidence that the null hypothesis is true

E.If the P-value for a test is 0.014,the probabilitythat the null hypothesis is true is 0.014

8.A truant officer believes that the percentage of students skipping school during the World Series is even greater than the previously claimed 7 percent.She conducts a hypothesis test on a random 200 students and finds 23 guilty of truancy.Is this strong evidence against the 0.07 claim?

A.No,because the P-value is over 0.10

B.No,because the P-value is only 0.0062

C.Yes,because the P-value is 2.5

D.Yes,because the P-value is 0.0062

E.There is insufficientinformationto reach a conclusion