The prevalence of disease in a population is expected to be 50%. An investigator is interested in the range of 45 to 55% with 95% confidence. The minimum sample size required for the study is:
The prevalence of disease in a population is expected to be 50%. An investigator is interested in the range of 45 to 55% with 95% confidence. The minimum sample size required for the study is:
💡 Explanation
The prevalence of disease in a population is expected to be 50%. An investigator is interested in the range of 45 to 55% with 95% confidence. The minimum sample size required for the study is:
✓ Correct Answer: D. 400
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