A neuropsychologist wants to determine if people who have a
dominant right cerebral hemisphere (right brain dominant) differ
from people with a dominant left cerebral hemisphere (left brain
dominant) in their choice of either music or reading as a preferred
activity. He surveyed 127 subjects with the following results.
Left Brain Dominant Right Brain Dominant
Music 48 18
Reading 35 26
a. Describe (1) the independent variable and its levels, and (2)
the dependent variable and its scale of measurement....