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27 January, 18:01

Out of 100 students sampled, 70 said they hope to get married someday. With 95% confidence what is the approximate percentage of the students in the population who hope to get married someday

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  1. 27 January, 19:06
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    To get the answer you need to use an equation. p^ = 70/100 = 0.7

    p^ ±3 σ p^ ≈0.7±0.1375 = (0.5625,0.8375)

    σ p^ = 1N p^ (1 - p^)
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