Examlex
If the population from which we sample is highly skewed to the right or to the left,then the population _________ might be a better measure of central tendency than the population mean
Sampling Error
The difference between the characteristics of a sample and those of the population from which it was drawn, arising purely by chance.
Directional Research Hypothesis
A hypothesis that specifies the direction of the expected difference or relationship between variables, predicting how one variable will affect another.
Nondirectional Research Hypothesis
A hypothesis that predicts a relationship between variables without specifying the direction of the relationship.
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