Answer Happy

The Great Plains Railroad is interested in studying how fuel consumption is related to the number of railcars for its trains on a certain route between Oklahoma City and Omaha. A random sample of 10 trains on this route has yielded the data in the table below. Railcars Units/mile 15 45 25 50 18 70 32 85 40 100 45 120 75 33 55 130 80 40 28 65 nau.

Perform a significance test to determine if it's appropriate to use the regression equation (computed in the previous problem) to make predictions of fuel consumptions for various numbers of railcars. Use a significance level of 0.05 and the p-value to make your decision. Fill in the blanks to show the work of this test. Ho: There is no linear relationship between number of railcars and fuel consumption HA: There is a linear relationship between number of railcars and fuel consumption Blank #1: Report the test statistic to two decimal places. Blank #2: Report the p-value to four decimal places. Blank #3: Give the test decision: (reject or do not reject) Ho Blank #4: Evidence _(favors or does not favor) that there is a linear relationship between number of railcars and fuel consumption Blank #5: If appropriate, find the predicted fuel consumption for 25 railcars. Round your answer to two decimal places. If it is not appropriate, then write NA as your answer.