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Epidemiology Suppose the sample size for a survey design based on a Simple Random Sampling is...

Epidemiology

Suppose the sample size for a survey design based on a Simple Random Sampling is n=400.A survey has been designed by a cluster sample. What sample size would be required for this survey?.Suppose you further wish to adjust for the sample sizes to account for Recording errors,non-responses and other contigencies, briefly describe how you would determine the sample size for this consideration.Hence determine the sample size,assuming a cluster sampling design?

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