Professors of ethics (Eth), professors of philosophy (Phil), and professors in fields other than philosophy or ethics (Other) were asked what percentage of their income professors should donate to charity. Assume the professors are randomly sampled from the population of professors. Determine whether there are significant differences among these three groups.
Do post-hoc tests, if they are warranted, using an overall significance level of 0.05. Arrange the means from lowest on the left to highest on the right, underlining any pairs that are not significantly different. Then write out your conclusions in complete sentences.
Minitab output is given.

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