A company employs two shifts of workers. Each shift produces a type of gasket where the thickness is the critical dimension. The average thickness and standard deviation of thickness for shift 1, based on a random sample of 30 gaskets, are 10.53 mm and 0.14 mm. The similar figures for shift 2, based on a random sample of 25 gaskets, are 10.55 mm and 0.17 mm. Letbe the mean difference in the thickness between shifts 1 and 2. Are the gaskets from shift 2, on average, wider than those from shift 1? Find the probability of the difference Shift 1 - Shift 2 or something smaller if the true difference is 0.

Your answer should express probability as a decimal with no more than decimal two places.