A new car dealer calculates that the dealership must average more than 4.5% profit on sales of new cars. A random sample of 81 cars gives the following result.Sample Size = 81Sample Mean = 4.97% Sample Standard Deviation = 1.8%Does the sample data provide evidence to conclude that the dealership averages more than 4.5% profit on sales of new cars (using a = .10)? Use the hypothesis testing procedure outlined below.a. Formulate the null and alternative hypotheses. b. State the level of significance.c. Find the critical value (or values), and clearly show the rejection and nonrejection regions.d. Compute the test statistic.e. Decide whether you can reject Ho and accept Ha or not.f. Explain and interpret your conclusion in part e. What does this mean?g. Determine the observed p-value for the hypothesis test and interpret this value. What does this mean?h. Does the sample data provide evidence to conclude that the dealership averages more than 4.5% profit on sales of new cars (using a = .10)?