Practice Hypothesis Testing Problems: Ho, Ha A carpet company advertises they will deliver your carpet within 15 days of purchase, on average.

Practice Hypothesis Testing Problems: Ho, HaA carpet company advertises they will deliver your carpet within 15 days of purchase, on average. A sample of 64 past customers is taken and the average delivery time is 16.2 days with a standard deviation of 5.6 days. Test the company's advertised claim using alpha=0.01.

March 24, 2011 Let X denote the no of days taken to deliver a carpet.Also µ and σ be the meanand sd of X.Here we need to test whether their claim that they will deliver a carpet within15 days...