The link between AQL, RQL and the reliability of a process
2023年5月5日 · The RQL is the poorest level of quality that the consumer is willing to accept in an individual lot. Reliability The process reliability is the probability that a process will perform its intended function without failure for a specified time under stated conditions.
Can one-sided confidence intervals have 95% coverage
2017年1月22日 · Yes we can construct one sided confidence intervals with 95% coverage. The two sided confidence interval corresponds to the critical values in a two-tailed hypothesis test, the same applies to one sided confidence intervals and one-tailed hypothesis tests. For example, if you have data with sample statistics x¯ = 7 x ¯ = 7, s = 4 s = 4 from a sample size n = 40 n = …
Finding the parameters (n,c) and (N,n,c) in single sampling plans
2018年11月25日 · I'm learning about devising single sampling plans for quality control, and I'd like to learn how to solve for the key parameters. Specifically, I have two related questions. Suppose my boss speci...
What is the mathematical difference between Cpk and Ppk?
2011年8月10日 · I am trying to understand the mathematical difference between Cpk and Ppk used in Statistical Process Control (SPC). I have gone through the web but all I found a confusing and more confusing theor...