A certain school classified 1,725 students according to the following categories of intelligence: dull, average, intelligent and family economic levels: rich, middle class, and poor. The result is as follows:

Categories of Intelligence	Dull	Average	Intelligent	Total
Economic Level
Rich	81	322	233	636
Middle Class	141	457	153	751
Poor	127	163	48	338
Total	349	942	434	1725

Using this result, can we conclude that intelligence is related to economic level? Use 1 percent level of significance.