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Interval estimates for proportions — Question 20

Original QCE Vault practice · 1 mark

Q20 · Practice questionTechnology-activeSimple familiar1 mark

QUESTION 20

A sample of 625 gives p^=0.52\hat p=0.52. A 95% confidence interval using z=1.96z=1.96 is closest to
(A)
(0.441,0.599)(0.441,0.599)
(B)
(0.461,0.579)(0.461,0.579)
(C)
(0.471,0.569)(0.471,0.569)
(D)
(0.481,0.559)(0.481,0.559)
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