Question: You are designing a study to be evaluated with a two-sample nondirectional independent t test at a. = .05. You want .90 power. You

You are designing a study to be evaluated with a two-sample nondirectional

You are designing a study to be evaluated with a two-sample nondirectional independent t test at a. = .05. You want .90 power. You expect Cohen's d to be about .40. How many subjects will you need per group?

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