a machine that is programmed to package 1.20 pounds of cereal in each cereal box is being tested for its accuracy. in a sample of 36 cereal boxes, the mean and the standard deviation are calculated as 1.22 pounds and 0.06 pound, respectively. (the purpose of the hypotheses testing is to determine if the machine is working improperly, that is, it is either underfilling or overfilling the cereal boxes.) find the p-value.