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A researcher is using a two-tailed hypothesis test with α = .05 to evaluate the effect...

A researcher is using a two-tailed hypothesis test with α = .05 to evaluate the effect of a treatment. If the boundaries for the critical region are t = ± 2.080, then how many individuals are in the sample?
n = 20
n = 22
n = 21
Impossible to determine without more information

math   Statistics-And-Probability   
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