fix typo in qa culture

quality_assurance_culture.qmd

@@ -85,7 +85,7 @@ There is a risk that data quality and data understanding cause quality issues wi
 
 ## Uncertainty in analysis
 
-Uncertainty is intrinsic to government work. Analysis should support government decision making by appropriate treatment of uncertainty. Senior leaders a responsible for instilling a culture in which the proportionate handling of uncertainty is part of all analytical work. To do so, senior leaders should gain an understanding of how to identify uncertainty, how uncertainty can be analysed, and how to plan for uncertainty. The National Audit Office has [created guidance for decision makers and senior leaders](https://www.nao.org.uk/wp-content/uploads/2023/08/Good-practice-guide-Managing-uncertainty.pdf) on managing uncertainty. It is the responsibility of decision makers to challenge analysts, as well as other members of a project team, on whether uncertainties have been considered, treated appropriately, and communicated.
+Uncertainty is intrinsic to government work. Analysis should support government decision making by appropriate treatment of uncertainty. Senior leaders are responsible for instilling a culture in which the proportionate handling of uncertainty is part of all analytical work. To do so, senior leaders should gain an understanding of how to identify uncertainty, how uncertainty can be analysed, and how to plan for uncertainty. The National Audit Office has [created guidance for decision makers and senior leaders](https://www.nao.org.uk/wp-content/uploads/2023/08/Good-practice-guide-Managing-uncertainty.pdf) on managing uncertainty. It is the responsibility of decision makers to challenge analysts, as well as other members of a project team, on whether uncertainties have been considered, treated appropriately, and communicated.
 
 ## Governance and control