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Calculation of Standard Deviation and Z-score Formula
Questions (1)
σ = sqrt[ P * ( 1 - P ) / n ] = sqrt [(0.8 * 0.2) / 100] = sqrt(0.0016) = 0.04
z = (p - P) / σ = (.73 - .80)/0.04 = -1.75. What
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asked by
Linda
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Parent Categories (1)
Probability and Sampling
