Question: Sampling error implies that: a) we can decide if an independent variable has an effect by visually inspecting the means of the different groups in

Sampling error implies that:

a) we can decide if an independent variable has an effect by visually inspecting the means of the different groups in an experiment

b) mistakes always will be made in selecting subjects for an experiment

c) the means for samples selected from the same population will differ by some chance amaount

d) the means for samples selected from the same population will alwas be equal

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