Comparing two samples using a T test?

  • Thread starter Thread starter ryuzon
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ryuzon

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Let's say 20 people out of 100 say that they prefer A to B. Separately, 45 people out of 200 people (of a different sample population) say they prefer B to A.

How do I figure out if this is a statistically significant difference at the 95% confidence level? Is this a two sample T test?

It's been 100+ years since I took stats in college...

Thanks!
 
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