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Sampling Plan Using EWMA Statistic of Regression Estimator | ||
| Iranian Journal of Science | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 03 اسفند 1394 | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijsts.2016.3595 | ||
| نویسندگان | ||
| Muhammad Aslam* 1؛ Muhammad Azam2؛ Chi-Hyuck Jun3 | ||
| 1King Abdulaziz University | ||
| 2University of Veterinary & Animal Sciences Lahore | ||
| 3POSTECH, Pohang 790-784 | ||
| چکیده | ||
| It is well-known that a regression estimator of the mean quality characteristic would be more informative when a correlated auxiliary variable is available. In this manuscript, we propose a new lot acceptance sampling plan based on the exponentially weighted average (EWMA) statistic of the regression estimator. It is assumed that the two variables of quality characteristic of interest and an auxiliary variable follow a bivariate normal distribution. Two cases of sigma known and sigma unknown are considered separately. We provide the tables for industrial use for various values of the smoothing constant. The efficiency of the proposed plan is discussed over the existing acceptance sampling plan based on EWMA. | ||
| کلیدواژهها | ||
| Regression estimator؛ EWMA؛ variable acceptance sampling؛ normal distribution | ||
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