A research survey on energy and the environment asked whether Canadians believe cooperation between Canada and the United States on these issues is important. The percentages saying this is important or somewhat important were 79.4% for the 389 men surveyed and 92.6% for the 611 women. Is there a difference between men and women on this issue at the 10% significancelevel?

Let p1 be the proportion of men. Let p2 be the proportion of women.

The test statistic is

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