If the researcher suspects that the strength of the relationship between two variables in the population is .25,what sample size should she use per group in a study involving two correlated groups and an alpha level of .05,directional test,in order to achieve a power of .90?
A)14
B)17
C)21
D)24

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The Answer of If the researcher suspects that the strength of the relationship between two variables in the population is .25,what sample size should she use per group in a study involving two correlated groups and an alpha level of .05,directional test,in order to achieve a power of .90?
A)14
B)17
C)21
D)24

If the Researcher Suspects That the Strength of the Relationship