Answer all questions with explanation

What is the sample size for a prevalence study in different populations, given the following

Population 1

Febrile subjects known prevalence from some studies.

IgM = 3.2% IgG = 27%

RNA = 3.2%

Population 2

Healthy population (blood donors) known prevalence

IgM = 0 IgG = 46%

RNA = not known

Population 3

Archived clinical specimen prevalence unknown.

IgM = not known IgG = not known RNA = not known

CL should be set at 95