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Guided, difficulty 1 of 3

From sample proportion to population estimate

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A water utility serves 36,000 households. It surveys a random sample of 500 households, and 216 of them say they would sign up for a smart meter.

(a) Compute the sample proportion $\hat{p}$ (3 decimal places). (b) Estimate how many of the utility's households would sign up (nearest whole number).