This paper circulates around the core theme of A national supplier of computer software is concerned together with its essential aspects. It has been reviewed and purchased by the majority of students thus, this paper is rated 4.8 out of 5 points by the students. In addition to this, the price of this paper commences from £ 99. To get this paper written from the scratch, order this assignment now. 100% confidential, 100% plagiarism-free.
A national supplier of computer software is concerned about the uniformity of service. It uses two different mailing services, Emery and Federal Express, and is interested in learning if there is a difference in the variance of delivery times. A sample of 31 delivers by emery had a standard deviation of 1.2 days, while 21 Federal Express deliveries reported a standard of 0.6 days. At the 5 percent level, does there appear to be a difference in the variability of delivery times?
