Is there a difference in the average number of years’ seniority between returning part-time seasonal employees and returning full-time seasonal employees at a Vail Resorts’ ski mountain? From a random...

Is there a difference in the average number of years’ seniority between returning part-time seasonal employees and returning full-time seasonal employees at a Vail Resorts’ ski mountain? From a random sample of 191 returning part-time employees, the average seniority, x¯1, was 4.9 years with a standard deviation, s1, equal to 5.4 years. From a random sample of 833 returning full-time employees, the average seniority, x¯2, was 7.9 years with a standard deviation, s2, equal to 8.3 years. Assume the population variances are not equal. (a) Test the hypothesis of equal means using α = .01. (b) Calculate the p-value using Excel.