Consider a double sampling plan given by the following parameters:

N= 2400 n₁= 70, c₁= 2, r₁= 4 n₂= 140, c₂= 5, r₂ = 6

• Calculate values for the ASN curve using Excel. Evaluate at the proportion nonconforming, p, given below.
• Plot the ASN curve using Excel.

Consider the single sampling plan given by the following parameters:

N= 2400 n= 90 c = 3

• Calculate values for the ASN curve using Excel. Evaluate at the proportion nonconforming, p, given below.
• Plot the ASN curve using Excel.

Highlight the range of proportion nonconforming values would you prefer the stated doubling sampling plan over the single sampling plan in order to minimize the ASN.

Proportion nonconforming, p

0.005

0.010

0.015

0.020

0.025

0.030

0.040

0.050

0.070

0.080

0.090

0.100

0.110

0.120