Unformatted text preview: random event. Given the relationship, what’s the probability that there is no relationship? If there’s no relationship, what’s the probability of the sample? Lower the pvalue, greater confidence we have there is a relationship between X and Y. however, it is not true that if pvalue is 0 that relationship is stronger. Pvalue of .05 or less is considered to be statistically significant. Even if it’s “stastically significant” relationship DOES NOT mean that relationship between X and Y is strong or relationship is causal. Nullhypothesis is that there is no covariation. If there isn’t a relationship, then there is a relationship (reject the null hypothesis) We start with assumption that X and Y DO NOT covariate, then we see a relationship between X and Y (use statistical data). So never say that THERE IS a relationship, but rather there PROBABLY is a relationship....
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This note was uploaded on 08/30/2011 for the course POL 51 taught by Professor Ryan,john during the Summer '08 term at UC Davis.
 Summer '08
 Ryan,John

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