A chain sampling plan, ChSP-1, is being used for the inspection of lots of 250 pieces. Five samples are inspected. If none of the sample is nonconforming, the lot is accepted; if 1 nonconforming unit is found, the lot is accepted if the 3 previous lot samples were free of nonconforming units. Determine the probability of acceptance of a lot that is 3% nonconforming.