Which type of software is designed to improve the quality of decision-making by providing comprehensive data analysis?

The type of software that is specifically designed to enhance decision-making by offering comprehensive data analysis is a decision support system (DSS). A DSS provides users with tools to analyze data from various sources and present it in a way that supports informed decision-making. This could include capabilities for data modeling, simulation, and forecasting, which help decision-makers understand potential outcomes of different choices.

While statistical software and spreadsheet software can also support data analysis, they serve different primary purposes. Statistical software primarily focuses on performing statistical analyses and applying mathematical models, while spreadsheet software is more general-purpose for data organization, calculation, and basic analysis, rather than specifically tailored for decision support.

Project management software is intended for planning, executing, and monitoring project tasks and resources, which does not inherently include the specialized decision-making support features that a DSS provides. Thus, in the context of improving decision-making through comprehensive data analysis, a decision support system stands out as the correct choice.