Question: help solve this In a study, researchers wish to test the hypothesis related to mean of a population at 5% level of significance. Find a

help solve this

In a study, researchers wish to test the hypothesis related to mean of a population at 5% level of significance. Find a sample size so that one can have a 95% power to detect a difference that is 0.25 of a standard deviation from the mean using a two-sided test for mean. Please estimate the sample size and put your answer in the following textbox

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