Browsing by Author "Ahmad, Shabbir"

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    • Linear profile monitoring using EWMA structure under ranked set schemes 

      Riaz, Muhammad; Mahmood, Tahir; Abbasi, Saddam Akber; Abbas, Nasir; Ahmad, Shabbir ( Springer London , 2017 , Article)
      In many manufacturing processes, study variable is not the only quality characteristic, but there may exist some explanatory variable(s) that are associated with the study variable. This association may be linear or nonlinear ...

    • New efficient exponentially weighted moving average variability charts based on auxiliary information 

      Abbasi, Saddam Akber; Riaz, Muhammad; Ahmad, Shabbir; Sanusi, Ridwan A.; Abid, Muhammad ( John Wiley and Sons Ltd , 2020 , Article)
      Control chart is a well-known tool for monitoring the performance of an ongoing process. The variability of a process is an important parameter that may deteriorate the process performance if it is not taken care on time. ...