According to the scientific method after dr. haley formulates a hypothesis and designs a study to collect data for her research on childhood obesity, she will next have to

To look at the data to give any conclusion.

Explanation:

Scientific methods are used to acquire knowledge in the development of science. Scientific methods should include the methods, procedure, observation and experiment of the result.

Dr. Haley has applied scientific method to research on childhood obesity. She has formulated a hypothesis designed data for her research. She nook look on the collected data more closely and give an exact conclusion and result of her research.