QCEVault

Sampling and proportions — Question 49

Original QCE Vault practice · 4 marks

Q49 · Practice questionTechnology-activeComplex unfamiliar4 marks

QUESTION 49 (4 marks)

A poll of 600 randomly selected people records a sample proportion of 0.540.54 supporting a proposal. Assuming the true population proportion is 0.500.50, use a normal approximation to determine the probability of obtaining a sample proportion of at least 0.540.54.
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