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It is believed that the proportion of the U.S. population who speak a foreign language at home has ...

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It is believed that the proportion of the U.S. population who speak a foreign language at home has ...

It is believed that the proportion of the U.S. population who speak a foreign language at home has changed over the years. Suppose the data below represent random samples that were taken in 1990, 2000, and 2010 by the Census Bureau, which recorded the number of individuals who spoke a foreign language at home.

Perform a chi-square test to determine if the proportion of the U.S. population who speak a foreign language at home has changed over the years using α = 0.05.

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Business Statistics

Edition: 2^nd

Author: Donnelly

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