Final answer:
A control chart is a statistical tool used to monitor and control a process over time. It helps identify whether a process is stable and under control or if there are factors causing it to deviate from the desired performance. Control charts are commonly used in quality control and process improvement in various industries.
Step-by-step explanation:
A control chart is a statistical tool used to monitor and control a process over time. It consists of a line graph with control limits, which are calculated based on the process data. The purpose of a control chart is to detect any changes in the process that may result in defects or variations.
Control charts are commonly used in quality control and process improvement in industries such as manufacturing, healthcare, and service. They help identify whether a process is stable and under control, or if there are factors causing it to deviate from the desired performance.
For example, in a manufacturing plant producing bottles, a control chart can be used to monitor the fill level of the bottles. The control limits on the chart will indicate the acceptable range of fill levels. If any data points fall outside these limits, it suggests that there may be a problem in the filling process that needs to be investigated and corrected.