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(Solution) - The National Assessment for Educational Progress measured the percentage of

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The National Assessment for Educational Progress measured the percentage of eighth grade students who were proficient in reading and the percentage of students who graduated from high school in each state in the U.S. The results for the ten most populous states are as follows:

The National Assessment for Educational Progress measured the percentage of
a. Construct a scatterplot of graduation rate (y) versus reading proficiency (x). Which state is an outlier?
b. Compute the least-squares line for predicting graduation rate from reading proficiency, using the data from all ten states.
c. Remove the outlier and compute the least-squares line, using the data from the other nine states.
d. Is the outlier an influential point? Explain.

 







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This question was answered on: Jul 11, 2017

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