Explain why this test, like other tests, simply indicates the degree of evidence

Show that ×2 = n∑∑(pij – pi+,p+j)2/pi+p+j. Thus, X2 can be large when n is large, regardless of whether the association is practically important. Explain why this test, like other tests, simply indicates the degree of evidence against 1/0 and does not describe strength of association. (“Like fire, the chi-square test is an excellent servant and a bad master,” Sir Austin Bradford Hill, Proc. Roy. Soc. Med. 58: 295-300, 1965.)

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