I think an yes/no/maybe answer is not enough for this question.
Some of the people saying yes may be thinking about a man in a white robe that created the universe and is still making decisions about other people's life.
Others may think about some etheric power that created the universe and keeps everything in harmony.
And some others may think that god is a nuclear explosion that created the universe, but has no implication on its development.
So to be truly meaningfull, people should explain what god means to them and whether they believe in it or not.
AFAIK god is the explanation of everything we don't know. And as the human race knowledge changes with time so does the definition of god.