https://community.jmp.com/t5/Discussions/sample-size-after-reduced-frequency/m-p/978826#M110696 <P>we are taking a sample of 136 parts from lots of 10,000 parts each .&nbsp;</P> <P>the P chart is shown here under attached .&nbsp;</P> <P>&nbsp;</P> <P>As can be seen the lot to lot variation is low .&nbsp;</P> <P>&nbsp;</P> <P>Now we need to start reducing the frequency to a sample every 6 or 8 lots , what would be the sample size ?</P> <P>&nbsp;</P> <P>Pass is 0 failure&nbsp; &nbsp;fail is 1&nbsp; &nbsp; Binomial&nbsp;</P> <P>&nbsp;</P> <P>Carlo&nbsp;</P> Fri, 23 Oct 2026 19:54:48 GMT carloaz 2026-10-23T19:54:48Z https://community.jmp.com/t5/Discussions/sample-size-after-reduced-frequency/m-p/978826#M110696 <P>we are taking a sample of 136 parts from lots of 10,000 parts each .&nbsp;</P> <P>the P chart is shown here under attached .&nbsp;</P> <P>&nbsp;</P> <P>As can be seen the lot to lot variation is low .&nbsp;</P> <P>&nbsp;</P> <P>Now we need to start reducing the frequency to a sample every 6 or 8 lots , what would be the sample size ?</P> <P>&nbsp;</P> <P>Pass is 0 failure&nbsp; &nbsp;fail is 1&nbsp; &nbsp; Binomial&nbsp;</P> <P>&nbsp;</P> <P>Carlo&nbsp;</P> Fri, 23 Oct 2026 19:54:48 GMT https://community.jmp.com/t5/Discussions/sample-size-after-reduced-frequency/m-p/978826#M110696 carloaz 2026-10-23T19:54:48Z