Environmental Science & Technology JournalAmerican Chemical Society (ASC)

  1. Calculate correlation coefficient for each pair of dependent and independent variables. Interpret your results.
  2. Is Latitude (x1) a statistically significant predictor of Arsenic Level? Test using alpha = 1%
  3. Is longitude (x2) a statistically significant predictor of Arsenic Level? Test using alpha = 1%
  4. Is Depth (x3) a statistically significant predictor of Arsenic Level? Test using alpha = 1%
  5. Calculate coefficient of determination R2 and R2-adjusted
  6. Explain the relationship between R2 and R2-adjusted of the model and interpret R2-adjusted.

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