Suppose that we would like to compare the average salary of the green employees with the average salary of the blue employees. 63 Green employees, 87 blue employees Green mean salary: 2371.80 Green stdv: 586.40 Blue mean salary: 2871.89 Blue stdv: 815.95 c) with a 0.01 significance level to test the claim that the average salary of all green employees is less than the average salary of all blue employees. Use the P-value method. must show all steps d) Find an appropriate confidence interval estimate of the difference between the two population means. Round to the nearest hundredth and show all steps.