When a researcher is interested only in general indications, not in data collection for statistical tests, he may opt for

When only general indications are wanted rather than data for statistical tests, the researcher opts for research questions.

Research questions guide open, exploratory inquiry without demanding formal quantitative testing.

A null hypothesis is a precise statement made expressly for statistical testing.

Quantification of data is the very step such a researcher is choosing to avoid.

Research problems name the broad area of concern, not the flexible tool used here.

Research questions are typical of qualitative and exploratory studies seeking understanding over proof.