QCEVault

Interval estimates for proportions — Question 35

Original QCE Vault practice · 3 marks

Q35 · Practice questionTechnology-activeSimple familiar3 marks

QUESTION 35 (3 marks)

A random sample of 400 gives p^=0.48\hat p=0.48. Using z=1.96z=1.96, determine an approximate 95% confidence interval for the population proportion.
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