تحديد حجم العينة و اختيار مستوى المعنوية دراسة احصائية

الملخص EN

The selection of the study’s sample, the method of its selection, the population from which it is drawn, and the possibility of generalizing its results to the population are among the important areas of research.This research paper reviews the most important criteria to determine and select the appropriate sample size from the study’s population.

Moreover, it presents the strategies and practical methods to determine the sample size accurately, so it represents the population correctly and serves the purposes of the study and research in a way that makes us trust in the research results, as well as in the realism of its application and its generalization to the population.

As for the experimental level, this study centers on conducting an experiment according to a statistical preview represented in the methods of drawing a sample from the study’s population.

The sample is chosen randomly from the units produced in two basic commodities: poultry and red meat, during 2017.

Results reveal that all units produced in the Poultry and Red Meat Divisions of the Ministry of Agriculture and Maritime Fishing under investigation did not use statistical standards and treatments in the sample selection.