Question: A study was conducted in which several measures of human development were studied. Included in these measures were the fertility and literacy rates of the countries studied. Use the data provided in the file entitled "Human Development" that is located on the data CD to answer the following questions. The researchers would like to determine what relationship exists, if any, between fertility and literacy rates — specifically they would like to explain literacy rates as a function of fertility rates. The researchers believe that a simple linear regression model is appropriate.

1. Produce the scatterplot that is relevant to this research question. Does it appear that a simple linear regression model is appropriate? Justify.
2. Find r and interpret.
3. Find the equation of the regression line.
4. Suppose a country were found to have a fertility rate of 2.0. What is the projected literacy rate for this country?
5. Did a country in this study actually have a fertility rate of 2.0? If so, name the country and provide the residual for this country.
6. Use r ² to justify whether or not fertility rate could be reasonably used to predict literacy rates.

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