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10.3 Exercise 9

Avg difficulty 2.5

A group of citizens wanted to know if the proportion of homeowners in their small city was different in 2011 than in 2010. Their research showed that of the 113,231 available homes in their city in 2010, 7,622 of them were owned by the families who live there. In 2011, 7,439 of the 104,873 of the available homes were owned by city residents. Test at a 5 percent significance level. Answer the following questions:

e. Is this test right-, left-, or two-tailed?

OpenStax Statistics, 10.3 Comparing Two Independent Population Proportions, exercise 9

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