How strongly do physical characteristics of sisters and brothers correlate? Here are data on the heights (in

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How strongly do physical characteristics of sisters and brothers correlate? Here are data on the heights (in inches) of 11 adult pairs:

Brother 71 68 66 67 70 71 70 73 72 65 66 Sister 69 64 65 63 65 62 65 64 66 59 62


a. Construct a scatterplot using brother’s height as the explanatory variable. Describe what you see.

b. Use technology to compute the least-squares regression line for predicting sister’s height from brother’s height.

c. Interpret the slope in context.

d. Calculate and interpret the residual for the first pair listed in the table.

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The Practice Of Statistics

ISBN: 9781319113339

6th Edition

Authors: Daren S. Starnes, Josh Tabor

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