Question: Let's say we have a sample of 36 cola cans that contain an average of12.29 oz. Let's assume that we know the standard deviation of can contents is0.1 oz. What is the 95% confidence interval for the mean? (In other words, we want to construct an interval around12.29 in– from 12.29–x to 12.29+x, where x is some value that we will have to compute – in which we can be 95% certain that the true mean resides.)