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A researcher tests the effect of mediation training on sleep quality, as measured by WASO (Wakefulness after sleep onset). She performs a randomized experiment; one
A researcher tests the effect of mediation training on sleep quality, as measured by WASO (Wakefulness after sleep onset). She performs a randomized experiment; one group receives meditation instructions, and one receives sham instructions. She plans to test H0: No difference in WASO, against the undirected H1: There is a difference, at a significance level of 5%. She obtains a one-sided p value of 0.03 and claims a significant effect. Do you agree? Why/ Why not?
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