A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 428428 gram setting. It is believed that the machine is underfilling the bags. A 2626 bag sample had a mean of 420420 grams with a standard deviation of 1717. A level of significance of 0.010.01 will be used. Assume the population distribution is approximately normal. Is there sufficient evidence to support the claim that the bags are underfilled?