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Publication Date
Fri Jun 01 2007
Journal Name
Journal Of Economics And Administrative Sciences
Volume
13
Issue Number
46
DOI
10.33095/jeas.v13i46.1276
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jeasiq-1276
ابعاد الجودة في السيطرة على العدوى المكتسبة في المستشفيات الحكومية العراقية: دراسة تقويمية
ابعاد الجودة في السيطرة على العدوى المكتسبة في المستشفيات الحكومية العراقية: دراسة تقويمية
سعد علي
خالد كاظم
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ابعاد الجودة في السيطرة على العدوى المكتسبة في المستشفيات الحكومية العراقية: دراسة تقويمية

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Publication Date
Tue Oct 01 2019
Journal Name
Journal Of Economics And Administrative Sciences
About The Run Length Properties for ( Cumulative Sum(Cusum) and The Exponentially Weighted Moving Average (EWMA)) control charts for Poisson Distribution
/ لوحات السيطرة
المجموع المتراكم
لوحة المتوسط المتحرك الموزون اسيا
سلاسل ماركوف
توزيع بواسون
متوسط طول التشغيل (ARL)
الانحراف المعياري لطول التشغيل (SDRL).
control charts
cumulative sum (Cusum)
the Exponentially Weighted Moving Average (EWMA)
markov chains
the poisson distribution
Average Run Length (ARL)
Standard Deviation Run Length (SDRL).
جنان عباس
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     In this study, we investigate about the run length properties of cumulative sum (Cusum) and The exponentially weighted moving average (EWMA) control charts, to detect positive shifts in the mean of the process for the poisson distribution with unknown mean. We used markov chain approach to compute the average and the standard deviation for run length for Cusum and EWMA control charts, when the variable under control follows poisson distribution. Also, we used the Cusum and the EWMA control charts for monitoring a process mean when the observations (products are selected from Al_Mamun Factory ) are identically and independently distributed (iid) from poisson distribution i

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Publication Date
Sun Jun 01 2014
Journal Name
Journal Of Economics And Administrative Sciences
Different Methods for Estimating Location Parameter & Scale Parameter for Extreme Value Distribution
Extreme Value Distribution
Maximum likelihood estimator
Method of moment Estimators
Estimators based on Percentiles
Least Squares estimators
Weighted Least Squares estimators
Ridge regression estimators
Adjusted Ridge regression estimators.
جنان عباس
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      In this study, different methods were used for estimating location parameter  and scale parameter for extreme value distribution, such as maximum likelihood estimation (MLE) , method of moment  estimation (ME),and approximation  estimators based on percentiles which is called white method in estimation, as the extreme value distribution is one of exponential distributions. Least squares estimation (OLS) was used, weighted least squares estimation (WLS), ridge regression estimation (Rig), and adjusted ridge regression estimation (ARig) were used. Two parameters for expected value to the percentile  as estimation for distribution f

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