Final answer:
The next procedure that should be done to gather data needed to meet the scientist's objective is experimental design.
Step-by-step explanation:
The next procedure that should be done to gather data needed to meet the scientist's objective is d. Experimental design.
After a hypothesis has been formulated, scientists need to design and perform experiments to test its validity. Experiments involve making systematic observations or measurements, preferably under controlled conditions where a single variable changes.
By designing experiments, scientists can collect data that will help them learn about the phenomenon they are studying and draw conclusions from the data analysis.