Question: A random sample of employees is asked to rate the performance of a president. This president is fired, and a new president hired. After six

A random sample of employees is asked to rate the performance of a president. This president is fired, and a new president hired. After six months, the same employees are asked to rate the performance of the new president. A rating of 1 corresponds to the best performance, and 10 the worst possible. Is there evidence, at the 4% level of significance, that employees rate the new president higher than the old president?

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