What size samples do you need for a 2-group design if you expect to have an effect size of .50 and you want your power to be .71?
What size samples do you need for a 2-group design if you expect to have an effect size of .50 and you want your power to be .71?
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 6ECP: Find the intensities of earthquakes whose magnitudes are (a) R=6.0 and (b) R=7.9.
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What size samples do you need for a 2-group design if you expect to have an effect size of .50 and you want your power to be .71?
Expert Solution
Step 1
Type of experiment: 2-group design (2 samples independent test)
Designated Power: 0.71
Effect size: 0.50
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