Answer the following question-answer every part please

Fuel Economy Study A fuel-economy study was conducted fortwo German automobiles, Mercedes and Volkswagen. One vehicle of each brand was selected, and the mileage performance was observed for 2 tanks of fuel in each car. The data are as follows in miles per gallon (mps): Mercedes: 24.7 24.8 24.9 24.7 24.5 24.6 24.9 24.6 23.9 Volkswa n: 41.7 42_3 41.6 39.5 41.9 41.8 42.8 42.4 39.9 Directions: Answer the questions and complete the following exercise. _ What is the goal ofthis study? _ Define the main variable. Is the variable quantitative or qualitative? 24.9 24.8 24.8 40.8 29.6 41.6 What constitutes the population of this study? What is the sample size? Compute the mean, median, and standard deviation of each data set. 4. _ Draw appropriate graphs comparing the means and standard deviations of the t',wo data sets. Use EXCEL to generate these graphs. 6_ Write a paragraph describing the similarities and differences between the two data sets, using appropriate descriptive statistics such as means, median, standard deviation, etc. 7 _ Perform a hypothesis test to determine f the mean mileage of Mercedes is lower than Volkswagen. use 5% significance level. Let: =mean mileage of Mercedes cars =mean mileage of Volkswagen cars To perform the hypothesis test use the 5-step process: a) State Ho and HI in symbols and in words. Identify which hypothesis is the claim and the type of test (right-tail, left-tail, tv.'O tail). b) Determine the critical value and label it (example, z = LEAL t C). c) Compute the test value, z or t. you are using the p-value method, then compute the test value and include the p-value of the test (4 decimal places). d) Make the decision to Reject Ho or Do not reject Ho. e) State your complete conclusion in the context of the claim. 8_ Discuss how this information or data might be used in the real world.