1. The Victorian government would like to estimate the average time a patient has to wait for his surgery in the public hospital. There are 500 patients waiting in the list. A simple random sample of size 10 is selected from the list and times till surgery for these patients were recorded in the following table: Time (in month): 4.5 5.9 8.0 4.2 6.8 6.1 5.8 5.0 7.1 6.5 Estimate the mean waiting time for the surgery in Victoria and place a 95% condence bound on this mean