A sociologist is interested in knowing whether adults who were bullied as children differ from the general population in terms of their empathy for…

A sociologist 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 54.76. Random sampling of 90 scores obtained from individuals who were bullied yielded a mean of 41.9 and a standard deviation of 20.26.

What is the z-value or t-value?

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