search query: @freeterm ELEKTRONISCHE INDUSTRIE / total: 13
reference: 7 / 13
| Author: | Quesenberry, C. P. |
| Title: | Geometric Q-charts for high quality processes (statistische Methode) |
| Journal: | Journal of Quality Technology
1995 : OCT, VOL. 27:4, p. 304-315 |
| Index terms: | |
| Freeterms: | STATISTISCHE QUALITÄTSKONTROLLE, ELEKTRONISCHE INDUSTRIE |
| Language: | eng |
| Abstract: | The p-chart based on the binomial distribution is not useful for many processes when p is small even when p is known, because the sample size required is very large. There are practical problems in areas such as electronics manufacturing and medical supplies sterilization where p can be 0,01 or smaller. Any type of binomial chart will be inadequate for these applications, and another form of process control is required. This paper introduces Q-statistics based on the geometric distribution, which can be used for such high quality processes. In fact, smaller values of p give more precise charting methods. |
SCIMA