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A sample of 50 participants completes a personality test that measures agreeableness. The sample mean is 20 with a standard deviation of 8. The scores
A sample of 50 participants completes a personality test that measures agreeableness. The sample mean is 20 with a standard deviation of 8. The scores on the personality test are transformed into z-scores. The new mean for the sample is ___. 0 2.5 8 20
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