Organisations collect and store data of many kinds - about finance, sales, personnel, etc. They also source new data that appears to be needed for supporting decisions in, for example, the development and marketing of a new product.
Sourcing, analysing and using data in order to generate the information needed by decision makers is a complex task. But it is one where managers would be ill advised simply to rely on specialist advice. Basic statistical approaches, ideas and interpretation need to be understood so that you can use and assess what you read in reports and presentations and be in a position to identify and commission what you require for decision making.