Find the critical value using an alpha

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On a questionnaire designed to measure empathy, the mean score for the general population is 30.6. Random sampling of 25 scores obtained from individuals who were bullied yielded a mean of 39.5 and a standard deviation of 6.6.

Test at the .05 level of significance.

Set up the criteria for making a decision. That is, find the critical value using an alpha = .05. (Be sign specific: + ; - ; or ±)

Reference no: EM132038414

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