Question: Please help with the questions below The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with o = 600
Please help with the questions below


The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with o = 600 miles. Suppose that a random sample of 41 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.9 thousand miles. Does this indicate that the average miles driven per vehicle in Chicago is different from (higher or lower than) the national average? Use a 0.05 level of significance. What are we testing in this problem? single proportion O single mean (a) What is the level of significance? State the null and alternate hypotheses. O Ho:p = 11.1; H: p # 11.1 O Ho: p = 11.1; H:p 11.1 O Ho: = li.1; H: # # 11.1 O Ho: u = 11.1; H: u 11.1 (b) What sampling distribution will you use? What assumptions are you making? O The Student's t, since we assume that x has a normal distribution with known o. The standard normal, since we assume that x has a normal distribution with unknown o. The standard normal, since we assume that x has a normal distribution with known a. O The Student's t, since we assume that x has a normal distribution with unknown o. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find (or estimate) the P-value. O P-value > 0.500 O 0.250
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
