Time (Hours) Concentration (mg/l) 0 0 0.5 78.1 1 99.8 1.5 84.4 2 50.1 2.5 15.6 Using your graphing calculator, Excel, or Desmos, find the
| Time (Hours) | Concentration (mg/l) |
| 0 | 0 |
| 0.5 | 78.1 |
| 1 | 99.8 |
| 1.5 | 84.4 |
| 2 | 50.1 |
| 2.5 | 15.6 |
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Using your graphing calculator, Excel, or Desmos, find the linear regression equation for the data, the correlation coefficient, r, and the coefficient of determination, r2, rounding to three places. Write the equation r, and r2 below.
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Using your graphing calculator, Excel, or Desmos, find the quadratic regression equation for the data and the coefficient of determination, r2, rounding to three places. Write the equation and r2 below.
Comparing the r2 value for the linear regression equation and quadratic regression question. Which regression model best fits the data?
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Authors: Robert C. Goldstein
1st Edition
0471887374, 978-0471887379
