The machine that produces metal cylinders is set to make cylinders with a diameter of 50 mm.Is it calibrated correctly? Regardless of the machine setting there is always some variation in the cylinders produced, so it makes sense to conclude that the machine is calibrated correctly if the mean cylinder diameter is equal to the set amount.not sufficient evidence to establish that the machine using the data set of metal cylinder diameters has n = 60, x= 49.99856, and s= is .1334, is sufficent evidence that produces the metal cylinders is calibrated incorrectly.