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 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.
Yes, because the results are unlikely to occur by chance.
No, because the results are likely to occur by chance.

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 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.
	Yes, because the results are unlikely to occur by chance.
	No, because the results are likely to occur by chance.

16shuston · Answer

What do you think it is. Did this happen by chance?

anonymous · Answer

I'm not sure but I know that's about half so maybe it was programmed that way

16shuston · Answer

I would say that there really aren't enough sample sizes since he only went one way. He went to work and not back

anonymous · Answer

That's a good way of looking at it. I'm horrible with statistics though.

16shuston · Answer

Its fine. I can help with statistics anytime.

16shuston · Answer

Its fine. I can help with statistics anytime.