# A process is controlled with a fraction nonconforming control chart with three-sigma limits, n = 100, UCL = 0.161, center

## Question:

(a) Find the equivalent control chart for the number nonconforming.

(b) Use the Poisson approximation to the binomial to find the probability of a type I error.

(c) Use the correct approximation to find the probability of a type II error if the process fraction nonconforming shifts to 0.2.

(d) What is the probability of detecting the shift in part (c) by at most the fourth sample after the shift?

## This problem has been solved!

Do you need an answer to a question different from the above? Ask your question!

## Step by Step Answer:

**Related Book For**

## Introduction to Statistical Quality Control

**ISBN:** 978-1118146811

7th edition

**Authors:** Douglas C Montgomery

**View Solution**

Create a free account to access the answer

**Cannot find your solution?**

Post a FREE question now and get an answer within minutes.
* Average response time.