Question: Extra Problem In 2010, the census reported that 8.7% of the citizens in Cobb County were senior citizens (65 years of age or older). A

Extra Problem In 2010, the census reported that 8.7% of the citizens in Cobb County were senior citizens (65 years of age or older). A developer who builds communities for senior citizens wants to know if this percentage has changed. He has a study conducted and finds that of a survey of 300 Cobb County citizens, 33 of those surveyed were senior citizens. Conduct a hypothesis test to see if the proportion of Senior Citizens in Cobb county has changed significantly

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