z-scores

z-scores - Example: Normal distribution of IQ Test scores =...

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3.23.11 z-scores and t-scores are essentially the same (score-mean)/SD z-score: when the SD of the population is known t-score: when the SD of the population is being predicted -estimate of z-score z-score z x = (x – μ x )/σ x
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Unformatted text preview: Example: Normal distribution of IQ Test scores = 100 = 16 34.13% will be between 100 and 116-due to the normal curve z = (116-110)/16 z = 1.00 Look at chart: 34.14% between 100-116; 15.87% score higher...
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