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Interval estimates for proportions — Question 349

Original QCE Vault practice · 1 mark

Q349 · Practice questionTechnology-activeSimple familiar1 mark

QUESTION 349

In a random sample of

625

residents,

400

support a community project. Use

z=1.96

to determine a 95% approximate confidence interval for the population proportion. Round endpoints to three decimal places.

(A)

(0.565,0.715)

(B)

(0.638,0.642)

(C)

(0.616,0.664)

(D)

(0.602,0.678)

ABCD

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