10.1) How many participants need to be enrolled in each group to have a 90% chance of detecting a significant difference using a two- sided test with...

10.1) How many participants need to be enrolled in each group to have a 90% chance of detecting a significant difference using a two- sided test with a = .05 if compliance is perfect?

Sample size - mean (for specified alpha and beta)5 E, error tolerance5 standard deviation.025 alpha.050 beta1.960 z alpha1.645 z beta12.995 sample size13 rounded up Sample size - mean (for...