Question: There is some evidence for asymmetry in the size of the left and right hemispheres of the human brain. In a study of 100 brains, the left hemisphere was found to be larger in 60, the right hemisphere in 15, and 25 had left and right hemispheres equal in size. Perform a chi-square goodness-of-fit test on the data to see whether there is evidence for asymmetry. Assume there is none and that the expected frequencies are evenly distributed.