What is a z chart?

A Z chart is a type of statistical chart that is used to display data in a way that shows the relationship between two or more variables. It is similar to a scatter plot, but with the addition of a line that connects the data points to show the overall trend or pattern in the data. The Z chart is often used in quality control and process improvement to monitor and analyze data over time.

A z chart is a type of statistical control chart that is used to monitor the quality of a process. It plots the mean of a sample of data as a point on a graph, and the points are connected by a line. The chart also shows the upper and lower control limits, which are the values that the mean of the sample is expected to stay within. If the mean of a sample falls outside of the control limits, it is a sign that the process is not stable and that corrective action may need to be taken.

Z charts are often used in manufacturing settings to monitor the quality of a production process. They can also be used in other settings, such as healthcare and finance.