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Test of Proportion

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A recent study was designed to compare smoking habits of young women with those of young men. A random sample of 150 women revealed that 45 of them smoked. A random sample of 100 men indicated that 25 smoked. At the significance level does the evidence show that a higher proportion of women smoke?

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Solution Summary

In this posting we test if there is significant difference in proportion using Z-test.

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