QCEVault

Sampling and proportions — Question 195

Original QCE Vault practice · 5 marks

Q195 · Practice questionTechnology-activeComplex unfamiliar5 marks

QUESTION 195 (5 marks)

A population has proportion p=0.15p=0.15. Determine the minimum sample size nn such that, using the normal approximation, P(p^>0.20)<0.025P(\hat p>0.20)<0.025.
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