Qualification > Sciences
ALL CIE BIOLOGY DOUBTS HERE !!!
Vampire-Love4ever:
Doubt attached!
Vampire-Love4ever:
Doubt attached! Please explain Point 11!
Vampire-Love4ever:
Doubt attached!
Why can't we use a water bath to maintain the temperature? ? ? :S
Vampire-Love4ever:
What role does oxygen play in oxidative phosphorylation?
Sue T:
--- Quote from: Vampire-Love4ever on May 11, 2011, 11:09:16 pm ---2 doubts attached!
--- End quote ---
b iii) its jus that if you look at the 2 means -> 0 .156 +/- .001 and 0.197 +/-.013 then you'll see that the upper limit for the first mean (0.156+0.001=0.157) and the lower limit for the second mean (0.197-0.013=0.184) dont overlap - there is a difference between them - so bottom line is there is a difference between the means since their ranges dont overlap ;)
biv) you have to look at the method by which they obtained the means in th table at the begining of th ques. Now they said for each pH, th samples wer monitored at 1 hour intervals for 20hours - so each mean has a degrees of freedom of 19 - now they compared the mean at two pHs so 19x2=38 - if u still dont get it call me
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