Question: The chi-square test used in Exercise 14.45 is equivalent to the two-tailed z-test of Section 9.6 provided a is the same for the two tests.

The chi-square test used in Exercise 14.45 is equivalent to the two-tailed z-test of Section 9.6 provided a is the same for the two tests. Show algebraically that the chi-square test statistic X2 is the square of the test statistic z for the equivalent test.

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