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Sampling and proportions — Question 145

Original QCE Vault practice · 5 marks

Q145 · Practice questionTechnology-activeComplex unfamiliar5 marks

QUESTION 145 (5 marks)

A population proportion is p=0.25p=0.25. Determine the minimum sample size nn such that, using the normal approximation, P(∣p^−p∣<0.03)≥0.95P(|\hat p-p|<0.03)\ge0.95.
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