z-SCORES
z-Scores establish relationships between score, mean, standard deviation Example o Population: μ = 65 and X = 59 corresponds to z = -2.00 o Subtract 65 from 59 and find deviation score of six points corresponds to z value of -2.00 o (X - μ) / z = σ Example o Population: σ = 4 and X = 33 corresponds to z = +1.50
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