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Psychologist is interested in knowing whether adults who were bullied as children differ from the general population in terms of their empathy for others. 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.Calculate the 99% confidence interval.

Steps:

What is the new critical value you will use for this calculation?

A) ±1.645

B) ±2.064

C) ±2.756

D) ±2.797

E) 6.74

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