Dr. Arya Cumberbatch has noticed some issues with Dr. Goldblum's later study using a much larger sample. She noticed that he started using three different forms of the questionnaire in order to mix up the questions. The issue that she worries about is that maybe one form was used more than the other two. Here's the data: Count = 150 Form Used Frequency Green Blue Ivory 44 66 40 What is the df?

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