Final answer:
Reports with internal data are used for tactical decisions, while summarized reports are used at the operational level of decision-making.
Step-by-step explanation:
Reports with only internal data are used for tactical decisions. Tactical decisions are short-term decisions that affect the day-to-day operations and resources of a business.
Internal data refers to information that is generated within the organization, such as sales figures, inventory levels, and employee performance metrics.
Summarized reports are often used at the operational level of decision-making. Operational decisions focus on the routine activities and tasks necessary to run a business efficiently.
These reports contain key performance indicators (KPIs) and are presented in a concise and easily understandable format.
For example, a retail store manager may use a summarized report to track daily sales and inventory levels to make decisions about restocking merchandise and adjusting staffing levels.