a steel tape measure calibriated for use @ 20C will yield length in error for 30 C. would we need to reduce or increase the lengths measured @ 30 C. please explain

Question

anonymous · Answer

I woudl assume you would need to decrease the length of measurments taken from a tape measure calabriated for a tempature that is lower than the enviornment that you are taking the measurements in.

anonymous · Answer

i thought so too but it is increase

anonymous · Answer

well thats kinda strange, I have never ran into a problem like that. I was just doing my best to reason it out.

anonymous · Answer

thank you. quick question do you know if in standard deviation we keep units

anonymous · Answer

yes it should be the same unit as your mean. or x-bar depending on what formula you are using.

anonymous · Answer

what about deviation

anonymous · Answer

yea I would keep units for anything you do in chemistry class.

anonymous · Answer

thank you

anonymous · Answer

anytime.