Question: Research results suggest that IQ scores for boys are more variable than IQ scores for girls. A typical study looking at 10-year-old children classifies participants by gender and by low, average, or high IQ. Following are hypothetical datarepresenting the research results. Do the data indicate a significant difference between the frequency distribution for makes and females? Test at the .05 levekl of siginificancer and describe the difference.

IQ

Low Average High

Boys 18 42 20 80

Girls 12 54 14 80

n = 160