ex1_fa08 - STA 6126 Exam 1 Fall 2008 PRINT Name _ True or...

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STA 6126 – Exam 1 – Fall 2008 PRINT Name __________________ True or false 1. A person’s attitude toward prohibition of alcohol (favor, neutral, oppose) is best described as nominal scale 2. The number of children living in a household is a discrete random variable 3. A sample is conducted at a small private university that has 4 colleges (Arts/Sciences, Education, Agriculture, and Health Sciences). Random samples of 25 students are selected from the each college. This is best described as a cluster sample. 4. A random sample of 250 likely voters in a town is selected, and 42% of the voters favor a referendum to allow a new store to be built in the town. When the actual vote takes place on election day, 44% of all voters vote to allow the new store to be built. The fact that 42% of the sample, and 44% of the population favor the store being built is an example of sampling error. 5. A researcher studying the size of family run farms in her state finds that the mean size is 800 acres, while the median size is 400 acres. The distribution of family farm sizes would be skewed to the
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ex1_fa08 - STA 6126 Exam 1 Fall 2008 PRINT Name _ True or...

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