A researcher calculated a chi-square statistic of 0.89 to determine if exposure to carbon monoxide (yes/no) is significantly different between people with medullary thyroid cancer and healthy people. If the critical value to decide significance for the chi-square statistic is 1.00, we can conclude:

Carbon monoxide is not significanly associated with medullary thyroid cancer.

Explanation:

If a researcher calculated a chi-square statistic of .89 this means that the chance is 89% that exposure to carbon monoxide is not significantly different between people with medullary thyroid cancer and healthy people, as the critical value to decide significance for the chi-square statistic is 1.00

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