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Hypothesis test help

 
 
Reply Sat 11 Jun, 2011 07:37 pm
"Is there a difference in the mean noise levels of..."

Would this imply that my alternative hypothesis is
Ha : mu (1) does not equal mu (2)
OR
Ha : mu (1) > mu (2)
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raprap
 
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Reply Sat 11 Jun, 2011 07:53 pm
mu(1) <> mu(2)

One step at a time. If the two distributions are unequal, then test if one has a greater mean value.

Rap
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