A quality control analyst at a water bottling company monitors the amount of water filled in the bottle.  The analyst took four batches of water bottles at different times of the day and recorded the average amount filled.  Use the data set below to create an xbar chart to check if the water filling process is in control.  Discuss why or why not the water filling process is in control. time period batch 1 batch 2 batch 3 batch 4 1 20.4 19.8 19.3 21.0 2 20.0 19.2 21.2 19.5 3 20.1 21.1 19.8 20.9 4 19.9 21.0 20.0 20.5 5 19.0 21.1 20.6 21.8 6 20.0 20.3 20.1 19.0

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Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.