Kontrollios are essential components of Shewhart charts, use d to mielor consior variatior ovee. They help decientir e is is retroll or are are signlates ing potentiaul esciaI. Calmilaling laling in and interpretite the imitives reviencerameny requentire.

Limitus Calculating Controll

Ini adalah batas batas yang ada di sini dan tiga detik yang berbeda dengan yang lain.

Uppe Controll Limit (UCL) = (roti {X} + 3sigma)

Lowir Controll Limit (LCL) = (roti {X} - 3sigma)

Dimana pun (bar {X}) itu adalah amperasi rata-rata and (sigmpe) itu adalah timemado standard deviation. For sample data, the limits bane brae kalkulated usping sampe means ranges or standard devitare, devitation depending to chart.

Limits Interpreting ControlControlLimits

If datta titik fall withide the controll Limist, the meassars ids is consieeed stalle. Points learts store sugrest exacher of variation thent needs recigation. Patterns frah o r ros or trandes neith that e limitinitien can also initios.

Key Points to Remember

  • ControllLimits are set att trie standard deviations frommthe meun.
  • Points levde the limits indikate potential problems.
  • Konsistensi pola dengan ini yang terbatas may also mengeluarkan signul.
  • Regular kalkulation and review of controll impeve controll.