# A production process manufactures items with weights that are normally distributed with mean 15 pounds and standard

## Question:

a. Find the probability that at most 5% of the items in a given batch will be defective.

b. Find the probability that at least 90% of the items in a given batch will be acceptable.

c. How many items would have to be produced in a batch to guarantee that a batch consists of no more than 1% defective items?

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**Related Book For**

## Data Analysis and Decision Making

**ISBN:** 978-0538476126

4th edition

**Authors:** Christian Albright, Wayne Winston, Christopher Zappe