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1. A national poll of 600 men announced that the proportion in the survey who claimed to help their wives at home was 85%. If we took a larger poll of 1200 men, about how many would we expect to say that they help their wives at home, based on the first survey?
A. 510B. 600C. 1020
2. A national poll of 600 men announced that the proportion in the survey who claimed to help their wives at home was 85%. If we took a larger poll of 1200 men, what will be the standard deviation of the number of men who help at home, based on the first survey?
A. 12.37B. 17.32C. 153
3. A machine fills cans of soda which are labeled "12 ounces" according to a Normal distribution with mean 12.1 ounces and standard deviation 0.1 ounces. If I buy a 12-pack of the soda, what is the chance the average contents of the cans will be less than advertised?
A. 0.1587B. 0.0003C. 0.50
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