Hi, Please help with question 8 (part 2) of October 2015 paper. Question- The shop in-charge is recording the inter-arrival time between consecutive consumers. She believes that the inter-arrival time X has an exponential distribution with parameter λ. A random sample of size 9 gives the values of inter arrival times as: 4 14 7 5 6 7 8 1 15 Obtain an exact 95% confidence interval for λ.
