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In hypothesis testing our job would be much easier if
Null Hypothesis
A statistical premise asserting the absence of a relationship or impact between variables, tested to determine if an observed association is likely due to chance.
Directional
Refers to hypotheses in research that predict not only the existence of a relationship between variables but the direction of that relationship as well.
Non-directional
A type of hypothesis that does not specify the direction of the expected relationship between variables.
Standard Error
A measure indicating the amount of variation or dispersion of a set of values; specifically, it reflects how much sampling variability a statistic possesses.
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