Final answer:
The Process flowchart is the tool NOT used for comparing process performance to specifications; it's meant for visualizing steps of a process rather than statistical comparison.
Step-by-step explanation:
The tool that is NOT used to compare process performance to specifications among the options provided is Option 4: Process flowchart. Process flowcharts are used to visualize the steps of a process and the decision points along the way, rather than for the statistical comparison of data to specifications.
- Frequency distribution histograms are used to represent data in graphical form to easily identify the distribution of values within a dataset.
- Probability paper is used for assessing the fit of a data set to a theoretical distribution.
- Control charts for individuals are used in statistical process control to monitor the performance of a process and compare it to operational specifications.
Therefore, a process flowchart does not serve the same purpose as the other tools in comparing process performance to specifications.