Caffeine Usage Survey of University of Rochester Freshmen

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Unformatted text preview: ultisextremelysignificant,andatasignificancelevelof 95%,wecanrejectthenullhypothesisinfavorofthehypothesisthatthe69.6%thatwehaveobtained isindeedsignificantandnot aresultofchance. SourceofCaffeine Whatsourcesofcaffeinedoyoutypically use? N/a Other Tea Soda Coffee Energyshots Energydrinks Caffeinepills 11  InFigure2,wesee theresultsofthequestion do 2 6 thatamongstthedifferent alternatives,coffeeseemsto 43 bethemostpopular.The 5 questionwasaskedwiththe 16 possibilityofmorethanone 1 responseperperson,witha 0 10 20 30 40 50 totalsamplesizeof69. Frequency Coffeewasselectedby Figure2 65.2%ofthesubjectssurveyed,andmakesup45.7%ofthetotalselectedoptions.Toseeif thepreferenceforcoffeeinthesamplegroupwassimplyduetochance,thehypothesisHa:p>.125was testedagainstthenullhypothesisHo:p=.125,assumingthatthenullhypothesisistrue;thereasonfor chosingp=.125isthatiftheyareallequallyfavored,theneachindividualoptionwouldcompose1/8th, or12.5%,ofthetotalselectedoptions.If...
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This document was uploaded on 03/27/2014 for the course BIO 235 at Rochester.

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