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Using observational data, a statistically significant relationship between response variable y and a predictor variable, x, means that a) There is a cause-and-effect relationship b)
Using observational data, a statistically significant relationship between response variable y and a predictor variable, x, means that
a) There is a cause-and-effect relationship
b) Variable x contributes information for the prediction y
c) It means that x preceded y in time.
d) Variable x and variable y are not correlated
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