Question: 60. The article A Dual-Buffer Titration Method for Lime Requirement of Acid Mine-soils (J. of Environ. Qual., 1988: 452456) reports on the results of a

60. The article “A Dual-Buffer Titration Method for Lime Requirement of Acid Mine-soils” (J. of Environ. Qual., 1988:

452–456) reports on the results of a study relating to revegetation of soil at mine reclamation sites. With x KCl extractable aluminum and y amount of lime required to bring soil pH to 7.0, data in the article resulted in the following summary statistics: n 24, x 48.15, x2

155.4685, y 263.5, y2 3750.53, and xy 658.455.

Carry out a test at significance level .01 to see whether the population correlation coefficient is something other than 0.

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