ksheet #8 15. Five years ago a company conducted a large-scale study of their employees. One of the questions asked was how far an employee had to drive to get to work. At that time the average commute distance was 11.3 mi and the standard deviation was 3.47 mi. Although the standard deviation has probably remained pretty much the same, it is believed that the average commute distance has changed due to a change in the demographics of the area. To test this conjecture, a sample of 24 employees is taken and the mean commute distance in the sample was 12.56 mi. Do these results indicate a significant change in the average distance an employee of this company drives to work? You may assume that commute distances are normally distributed. X = nl Ho : Ha : work to find p-value: Conclusion