The hypothesis in the scenario is that the batteries may be exhausted, which is validated by replacing them with new ones and observing the flashlight working again.
Hypothesis: In the scenario provided, the hypothesis is that the batteries may be exhausted causing the flashlight to not work.
Experiment: Jeremy tests this hypothesis by replacing the batteries with new ones and observes that his flashlight works again.
Validation: Since the flashlight works with the new batteries, the original hypothesis that the batteries were exhausted is supported.
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