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Two identical footballs, one air- lled and one helium- lled, were used outdoors on a windless day at the University of Tennessee's athletic complex,...
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(a) If you make a histogram of the difference with the information above can you use the t-distribution?
Why or why not?
(b) Conduct a hypothesis test to see if the distance traveled by the air-filled football is significantly
less than the distance traveled by the helium-filled football at a 1% level of significances. Show all
steps and interpret.