Sample Size in Inspection Lot

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Hi All,

For my query these are the data i entered.

GRN qty 720 yds of fabric.
In the Sampling scheme, with the inspection severity 2, i entered lot size 100, sample size 13, acceptance number 6 and rejection number 8 (Sampling Scheme 004).
In the Sampling procedure as a Sampling Type i used, Use sampling scheme and for valuation mode i used Attributive inspection nonconf. units and attached the sampling scheme 004. (Sampling Procedure 005)
In the Inspection Plan i used one characteristic and attached Sampling Procedure 005 to this characteristic.

1. when i view the inspection lot, in Sample Size qty filed 169 yds displayed. How did this figure calculated? Any help is highly appreciated.

Thanks and Regards,

DTD