Esraa Awni Haydier

• Master of Statistics & Informatics
• Professor (Assistant) at Salahaddin University-Erbil

In this research, a proposal was made to create a Baez board for the number of weighted defects (BD-Chart) and compare it with the Shewart board for the number of weighted defects (D-Chart) through a simulation as well as using real data and relying on a program in Mat lab designed for this purpose and was done through the application Conclusion: T...

The representation of data through a Gaussian model allows it to be more flexible, effectively handle distortions, and avoid over-adaptation to the data. This approach helps improve the model's accuracy and understand how outliers impact the accuracy of the distribution parameters estimator. In this research, a comparison was made between some met...

The research presented a comparative study in time series analysis and forecasting using VAR models, which depend on the existence of a significant relationship between the studied variables, and ARIMAX models, which depend on the linear effect of the independent variables (model input) on the dependent variable (model output). The models were anal...

The data upon which charts of quality control were built through are the same as that of various data used in many other branches of statistics such as analysis regression and time series analysis ... etc,exposed to the pollution which may effect the accuracy of these chart, therefore, a researcher suggested to use a wavelet filter with threshold i...