1. The problem statement, all variables and given/known data "Is there sufficient evidence to support the claim that the mean content of all such containers is at least 3 litres? 2. Relevant equations 3. The attempt at a solution I'm not sure what H0 and H1 will be H0: The mean content is not at least 3L H1: The mean content is at least 3L. So does this imply that u, the mean, is greater than or equal to 3 or is u lower than or equal to 3?