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3 November, 18:10

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)

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Answers (1)
  1. 3 November, 20:32
    0
    C.

    (0.525, 0.635)

    Step-by-step explanation:

    0.58 + / - 0.994sqrt (0.58*0.42/80)

    0.58 + / - 0.05485042953

    [0.5251495705, 0.6348504295]
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