Incorrect

The question was: What is the mean for the group treated with active magnets?

Your Answer: 9

Answer and explanation: Your answer is incorrect. The correct answer is Just over 4.
The line in the box plot for the Control Group which is at 9 on the pain rating scale is the median score for the Control Group. On a box plot, the line represents the median, or middle score, of the group. The mean is represented by the small plus sign, +. The Treatment Group, or the group which recieved treatment with active magnets, has a mean, according to the box plot, of just over 4.



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