Question: How will I determine if there is a significant difference among data when anaylizing the null vs the alternative hypothesis? For example if the the

How will I determine if there is a significant difference among data when anaylizing the null vs the alternative hypothesis?

For example if the the power analysis completed for the study determined that a minimum sample size needed to detect the smallest anticipated effect size is 200 and the sample size is 228. Is 228 enough to find a significant difference?

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