Browsing by Author "Adegoke, Nurudeen A."
Now showing items 1-3 of 3
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Exponentially weighted moving average control charts for monitoring coefficient of variation under ranked set-sampling schemes
Alabi, Oluwapelumi; Adegoke, Nurudeen A.; Adebola, Femi Barnabas; Oseni, Bamidele Mustapha; Abbasi, Saddam Akber ( Taylor and Francis , 2021 , Article)Several coefficients of variation (CV) control charts under simple random schemes (SRS) have been proposed to monitor process relative variability. However, little attention has been given to investigating the performance ... -
Multivariate control charts for monitoring process mean vector of individual observations under regularized covariance estimation
Omolofe, Olusola T.; Adegoke, Nurudeen A.; Adeoti, Olatunde A.; Fasoranbaku, Olusoga A.; Abbasi, Saddam Akber (2021 , Article)Multivariate control charts are generally used in industries for monitoring and diagnosing processes characterized by several process variables. The applications of charts assume that the in-control process parameters are ... -
Nonparametric multivariate covariance chart for monitoring individual observations
Adegoke, Nurudeen A.; Ajadi, Jimoh Olawale; Mukherjee, Amitava; Abbasi, Saddam Akber ( Elsevier , 2022 , Article)Parametric and nonparametric multivariate control charts that are proven very useful in monitoring the covariance matrix of multivariate normally or “nearly” normally distributed continuous datasets have been proposed in ...