Question: A manufacturing process is considered to be "in control" if the long run means weight of components produced is 0.20 kilograms, even though individual components may vary from this mean. Here are weights of a random sample of recently produced components:
0.253, 0.240, 0.247, 0.183, 0.247, 0.223, 0.252, 0.195, 0.235, 0.241, 0.251, 0.261, 0.194, 0.236, 0.256, and 0.241
Does this process seem to be in control? Justify your answer.