You’re the manager of the canning line at avery brewing company. when the machines are operating properly, at least 12 ounces of beer is added to each can. a sample of 40 beers from the line yields a mean of 12.05 ounces with a standard deviation of 0.2 ounces. do you think the canning line is operating properly?

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?