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Two sociologists are interested in the relationship between a county's poverty rate (%) and that county's...

Two sociologists are interested in the relationship between a county's poverty rate (%) and that county's high school dropout rate (%) for counties in the United States. They are interested in whether counties with higher poverty rates will have higher dropout rates. They collect data from a random sample of counties in Minnesota.

1) What is the parameter of interest in this study? Describe in words and provide the appropriate statistical notation.

2) What are the null and alternative hypotheses for this test?

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Answer #1

1)

The parameter of interest in this study is the correlation between county's poverty rate (%) and county's high school dropout rate (%) in the United States. A positive correlation between correlation between county's poverty rate (%) and county's high school dropout rate (%) suggests that counties with higher poverty rates will have higher dropout rates and vice-versa. The appropriate statistical notation is .

2)

Null Hypothesis H0:

Alternative Hypothesis H0:

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