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Estimate the line using least squares principles

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The following table lists the annual amounts of glass cullet produced by Kimble Glass Works, Inc.

Year Code Scrap (tons)

1999 1 2.0
2000 2 4.0
2001 3 3.0
2002 4 5.0
2003 5 6.0

Determine the least squares trend equation. Estimate the amount of scrap for the year 2005.

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Estimate the line using least squares principles

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