منابع مشابه
Mixed measurement and model-based dose recommend- ing control flow with fixed sample library size
Background : The drug administration is a routine action regularly performed in every day medical practice that requires a lot of time and attention of medical personal. Therefore, it can benefit from the process automatisation using electronic devices, which will save time and thus reduce the treatment cost. The number of human factor errors will be also reduced, however, often at the price of...
متن کاملSample size requirements for the internal validation of psychiatric scales.
The ratio of subjects to variables (N/p), as a rule to calculate the sample size required in internal validity studies on measurement scales, has been recommended without any strict theoretical or empirical basis being provided. The purpose of the present study was to develop a tool to determine sample size for these studies in the field of psychiatry. First, a literature review was carried out...
متن کاملan economic design of combined double sampling and variable sample size x ̅ control chart
abstract. in recent years several studies have shown that control charts with adaptive schemes or double sampling plans detect both small and moderate shifts in the process mean more quickly than the traditional shewhart chart. in the classical double sampling chart, the difference between two points were placed in the central region of first stage was not considered. in this study, a new co...
متن کاملEconomic-statistical Design of NP Control Chart with Variable Sample Size and Sampling Interval
The control charts are graphical tools and proven techniques to improve the performance of a process. Usually, the processes are not naturally controlled, so the use of control charts will help to reduce the variability and increase the stability of the process. In the traditional approach, control charts with fix sample size and constant sampling intervals were used to identify the changes in ...
متن کاملSample size estimation in epidemiologic studies
This review basically provided a conceptual framework for sample size calculation in epidemiologic studies with various designs and outcomes. The formula requirement of sample size was drawn based on statistical principles for both descriptive and comparative studies. The required sample size was estimated and presented graphically with different effect sizes and power of statistical test at 95...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Integrated Journal of Business and Economics
سال: 2019
ISSN: 2549-3280,2549-5933
DOI: 10.33019/ijbe.v3i1.110