Sample Size and Power
Sample Size and Power
Sample Size and Power
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Misconceptions<br />
• P-value = inferential tool ? Yes<br />
– Helps demonstrate that population means<br />
in two groups are not equal<br />
• Smaller p-value → larger effect ?<br />
No<br />
– Effect size is determined by the difference<br />
in the sample mean or proportion between<br />
2 groups
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