A PDF document that provides tables and formulas for various types of control charts for variable and attribute data. The tables include constants, control limits, centerlines, and divisors for different subgroup sizes and charts.
Attribute Chart: np Chart - Six Sigma Study Guide
Learn how to create and use an np chart, a quality control chart for defectives, and compare it with a p chart. See formulas, examples, and applications of np chart in Six Sigma projects.
NP Chart (Number Defective Chart) - 6sigmatool.com
This article delves into the theoretical underpinnings and the meticulous construction of NP Charts, also known as Number Defective Charts. By providing a blend of theoretical insight and practical guidance, the aim is to illuminate the pivotal role NP Charts play in ensuring process stability and enhancing quality control.
Attribute Charts: p Chart - Six Sigma Study Guide
Learn how to create and interpret a p chart, a control chart for proportions, using a binomial distribution. See formulas, examples, and Excel template for p chart analysis.
This document provides a collection of formulas and constants for constructing various control charts, such as x and R, p and np, c and u, and capability indices. It also explains the terminology, sensitizing rules, and table of constants for SPC.
As an alternative to the p-chart when nis constant and pis unknown, it is possible to use the corresponding np-chart. If pis unknown or not speci ed, the pcan be used to estimate p.
Learn how to use p, c and u charts to monitor the fraction of nonconforming units in a process. See examples, exercises and SAS output for book binding data.
Learn how to use control charts for fraction nonconforming, np, u, and c charts to monitor process quality. See examples, formulas, and guidelines for choosing and interpreting control limits.
* Since the sample size (n) is constant at each subgroup (per row) you won’t have to calculate the UCL and LCL for all data points.
p Control Charts - SPC for Excel
2024年8月22日 · A p control chart is used to look at variation in yes/no type attributes data. There are only two possible outcomes: either the item is defective or it is not defective. The p control chart is used to determine if the fraction of defective items in a …
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