Question

On his way to work, a man notices that 9 of the 16 traffic lights are green. Is there statistical significance to say that these traffic lights are programmed to allow ease of travel?

Yes, because the results are unlikely to occur by chance.
Yes, because the man encountered a high number of green traffic lights.
No, because the man didn't encounter enough traffic lights on this trip for a valid sample size.
No, because the results are likely to occur by chance.

Answer 1

Yes because the results are unlikely to occur by chance, is what I think .

Answer 2

The answer is No, the results are likely to occur by chance.

Explanation:

On his way to work, a man notices that 9 of the 16 traffic lights are green. Is there statistical significance to say that these traffic lights are programmed to allow ease of travel:

The answer is No, because the results are likely to occur by chance.

As the number of green and non-green lights are approximately the same so we can't judge anything regarding the ease to travel.