Suppose a sample of 80 with a sample proportion of 0.58 is taken from a population. Which of the following is the approximate 68% confidence interval for the population parameter?

A.

(0.414, 0.746)

B.

(0.470, 0.690)

C.

(0.525, 0.635)

D.

(0.359, 0.801)

Solve. x + 20 ≤ - 10

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