QCEVault

Interval estimates for proportions — Question 95

Original QCE Vault practice · 5 marks

Q95 · Practice questionTechnology-activeComplex unfamiliar5 marks

QUESTION 95 (5 marks)

A sample has p^=0.42\hat p=0.42 and n=400n=400. A symmetric confidence interval is constructed with margin of error 0.0480.048. Determine the corresponding confidence level, to the nearest percent.
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