Final answer:
Sensitivity graphs show the effect of changing one input parameter at a time on a particular measure, not multiple parameters, hence the statement is false.
Step-by-step explanation:
Sensitivity graphs illustrate the sensitivity of a particular measure to multiple-at-a-time changes in the uncertain parameters of a project. The correct answer to this statement is False. Sensitivity graphs typically show how the output of a model or system changes in response to changes in one input parameter at a time, not multiple parameters simultaneously. They are used to identify which parameters have the most significant impact on the measure in question, which is crucial for decision-making in business and project management.