Qualification > Sciences
biology paper 5
iz:
i wish i knew tht
narnia:
--- Quote from: plasmatissue on June 06, 2009, 06:57:31 pm ---
--- Quote from: Z on June 06, 2009, 02:25:50 pm ---
--- Quote from: plasmatissue on June 06, 2009, 12:20:35 pm ---
--- Quote from: demonrc on June 06, 2009, 04:37:30 am ---38 was the degree of freedom...!! ;)
--- End quote ---
38?! i wrote 1! whered you get 38 from?! or 19?...theres only two ph being considered...!
--- End quote ---
it wz sed in d ques......readings ver taken at HOURLY intervals for 20 HRZ!!! dt mnz 40 readings ver taken
bt i wrote 39 ???
--- End quote ---
wait a minute. didnt the Q. say 20 hour interval but not for how long???
--- End quote ---
it sed at HOURLY INTERVALS FOR 20 HOURS
plasmatissue:
--- Quote from: Z on June 06, 2009, 09:35:10 pm ---
--- Quote from: plasmatissue on June 06, 2009, 06:57:31 pm ---
--- Quote from: Z on June 06, 2009, 02:25:50 pm ---
--- Quote from: plasmatissue on June 06, 2009, 12:20:35 pm ---
--- Quote from: demonrc on June 06, 2009, 04:37:30 am ---38 was the degree of freedom...!! ;)
--- End quote ---
38?! i wrote 1! whered you get 38 from?! or 19?...theres only two ph being considered...!
--- End quote ---
it wz sed in d ques......readings ver taken at HOURLY intervals for 20 HRZ!!! dt mnz 40 readings ver taken
bt i wrote 39 ???
--- End quote ---
wait a minute. didnt the Q. say 20 hour interval but not for how long???
--- End quote ---
it sed at HOURLY INTERVALS FOR 20 HOURS
--- End quote ---
:o ok ok i believe you!
dont shout in bold letters man...im not THAT blind- damn thats an understatment considering the stupid mistake..ugh... :-[
demonrc:
degrees of freedom is 38.....total 40 taken..its a t test thts caried out..not chi squared...for t test degrees of freedom is n-2
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