5 A machine used to fill beer cans fills them to a mean amount of 16 oz In a sample of 25 cans with

5 A machine used to fill beer cans fills them to a mean amount of 16 oz In a sample of 25 cans with a population std dev of 5, how likely is it, if the machine is working properly, that it would fill to 135 oz or less?

P(z) =

formula given: x bar – ? / ??n