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Suppose I want to know the percentage of people having smartwatch, I randomly pick up 240 people and find that 150 of them have smartwatch.

Suppose I want to know the percentage of people having smartwatch, I randomly pick up 240 people and find that 150 of them have smartwatch. Construct a 95% confidence interval for the population proportion having smartwatch.

a.(0.5601, 0.6901)

b.(0.5638, 0.6863)

c.(0.5445, 0.7055)

d.None of these options

e.(0.5580, 0.6923)

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