The accompanying data show the U.S. population versus shipments of socks. a. Determine the least-squares regression line

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The accompanying data show the U.S. population versus shipments of socks.

x = U.S. Population y = Shipments of Socks Year 2927.2 million pairs 260.7 million 1994 266.1 3002.4 1995 3217.3 1996 26

a. Determine the least-squares regression line and calculate r.
b. What proportion of the variability in sock shipments is explained by the regression equation?
c. During a year when the U.S. population is 280 million, estimate shipments for socks.

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