Basically my problem is do I know the standard deviation or not.
The question is about voting patterns with a set of data we have been given Conservative =2 and Other =1 sample size of 765.
The test is whether mean=0.5=m
One way I have found is to use
however another I get is to calculate the standard deviation from the data and plug that in ie
sample mean- m/standard deviation/n
Which method should I use and why?
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- Thread Starter
- 10-04-2011 10:57