Question: From Exercises 12.97 and 12.98, we conjecture that, for a comparison of two population proportions, the value of the 2-statistic of a chi-square homogeneity test

From Exercises 12.97 and 12.98, we conjecture that, for a comparison of two population proportions, the value of the χ2-statistic of a chi-square homogeneity test equals the square of the value of the z-statistic of a two-proportions z-test. Establish that fact.

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