Answer Happy

Chris is a human resources executive for a technology company. He is deciding between two types of plans for vacation allowance for the employees of the company. Unlimited and Traditional Chris wants to estimate, for workers in the tech industry, the difference between the yearly mean number of vacation days taken by workers with an Unlimited plan and the early mean number of vacation days taken by workers with a Traditional lan Chris surveys a random sample of 17 workers who have the Unlimited plan and a random sample of 16 workers who have the Tradition pan (These samples are chosen independently) for each worker, he records the number of vacation days taken last year. For the workers with an Unlimited plan, the sample means 20.4 with a sample variance of 51.8. For the workers with a Traditional plan, the sample means 17.3 with a sample variance of 80 Assume that the two populations of vacation days taken are approximately normally distributed. Let be the population mean number of vacation days taken by workers with an Unlimited plan. Let , be the population mean number of vacation days taken by workers with a Traditional plan Construct a 90% confidence interval for the difference - Then find the lower and upper limit or the 90% confidence interval Carry your intermediate computations to three or more decimal places. Round your answers to two or more decimal places. (If necessary, consult a isto formulas)