The National Assessment for Educational Progress measured the percentage of eighth grade students who were proficient in
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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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a b y 30122 0596x c y 22714 1305 h Yes th...View the full answer
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