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Statistics: "Correction for continuity"?

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  • Statistics: "Correction for continuity"?


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Answer #1 | 29/12 2013 00:37
n = 80, p = .25 (i) µ = np = 20 (ii) σ = √(npq) = 3.873 (iii) with continuity correction, ≤21 becomes <21.5 (iv) z-score = (21.5 - 20)/3.873 = 0.387 (v) look up a z-table, interpolated for 3rd dp to get P(z < 0.387) = 0.6506 <------
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