Posted by: iinception February 3, 2011
Statistics question
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 i am not a statistician  so this may be incorrect ..  this may be ur starting point ....

if I were you I would do z-test based on two sample..with H0 : u1= u2 and H1: u1!=u2....z test because number of samples > 30... just a suggestion...sajha statistician may suggest u more!!!
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