Asked by Linda

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 type of formula is this problem?

11 years ago

Answered by PsyDAG

Statistical?

11 years ago

Answered by bukola

express the square root of 0.0016 in standard form

9 years ago

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Asked by Linda

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