Please show the steps and equations used

162 Chapter + EXAMPLE 4.2 The double sampling plan in the earlier section was n1 = 75 C1 = 0 ry= 3 n2 = 75 C2 = 3 12 =4 . A second sample is required if on the first sample one or two nonconformances are noted. . If zero nonconformances are found in the first sample, the lot is accepted. . If three or more nonconformances are found in the first sample, the lot is rejected. Create the average sample number curve for this double sampling plan. Solution: Denote the probability of making a decision, accept or reject, on the first sample as