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@SherazKhan
Created April 8, 2018 03:00
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# Load 'pwr' package
library(pwr)
# 80% power
# Small effect size
small80p <- pwr.t.test(sig.level = 0.05, d = 0.2,
power = 0.8, type="two.sample", alternative="two.sided")
small80p
# Medium effect size
med80p <- pwr.t.test(sig.level = 0.05, d = 0.5,
power = 0.8, type="two.sample", alternative="two.sided")
med80p
# Large effect size
large80p <- pwr.t.test(sig.level = 0.05, d = 0.8,
power = 0.8, type="two.sample", alternative="two.sided")
large80p
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