Answer
Monday, Tuesday and Friday in one week I went to sleep earlier, and noticed I felt more focused than usual the following day. I used induction to conclude that going to sleep earlier makes me feel more focused the following day, and I decided to go to sleep earlier every night the following week.
Work Step by Step
One example of making a decision in daily life because of deductive reasoning would be the following:
Monday, Tuesday and Friday in one week I went to sleep earlier, and noticed I felt more focused than usual the following day. I used induction to conclude that going to sleep earlier makes me feel more focused the following day, and I decided to go to sleep earlier every night the following week.
If writing your own answer, simply pick something in daily life that you did a few times, saw a particular consequence from doing it, and then changed what you do based on that.