Using the following data, compute the z-scores for raw scores of 20 and 25. Data: 19, 26, 18, 16, 21, 18, 26  Your parameters are µ=18.6; ?? = 4.50; N=7. What does this value indicate about the data?

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Using the following data, compute the z-scores for raw scores of 20 and 25. Data: 19, 26, 18, 16, 21, 18, 26 

Your parameters are µ=18.6; ?? = 4.50; N=7. What does this value indicate about the data?

 

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Step 1

Z-score = ( value-µ) / σ

σ = population standard deviation = 4.5

µ = population mean = 18.6

Z-score for values (20 and 25) = ? 

Given data = 19, 26, 18, 16, 21, 18, 26 

 

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