Final answer:
The claim that PERT and Gantt were an agency is false. PERT and Gantt charts are project management tools created to help with the scheduling and management of projects.
Step-by-step explanation:
The statement that PERT and Gantt were an agency which discovered the value of visualization in setting budgets is false. PERT (Program Evaluation and Review Technique) and Gantt charts are project management tools used to schedule, organize, and coordinate tasks within a project. PERT is a method to analyze the tasks involved in completing a given project, especially the time needed to complete each task, and to identify the minimum time needed to complete the total project. On the other hand, a Gantt chart is a type of bar chart that illustrates a project schedule. They are named after their creators: Henry Gantt, who designed his chart as a production control tool around 1910-1915, and the developers of the PERT technique, which was developed by the U.S. Navy during the 1950s to manage the Polaris submarine missile program.