Hey everyone, welcome to this lecture. What is a huge chart? A huge chart is used when you are capturing defects. And when the subgroup size varies. A you chart tracks the number of defects per unit sampled and detects the presence of special causes. Let's look at this example.

A premier hotel has hired a new principal chef. His job is to ensure that each of the dishes prepared by the hotel kitchen are tasty, has rich aroma is prepared in the given time, and there are many such parameters. He inspects a few dishes each day and identifies total number of defects. Your job is to check if the process is in control. In this example, the principal chef is capturing defects and the sample size is varying. That you will use a u chart.

So, how to construct this u chart. You will learn that in the next lecture. See you there.