3) The following graphs are all of the same experimental data. The portion of th

Question

3) The following graphs are all of the same experimental data. The portion of the data chosen for the linear regression analysis varies in Figs. 1-4. Examine the differing analyses of the same data in Figs. 1-4 Approx. region of quasi-linear portion of temperature decay selected for regression analysis almost all late earl mid Figure Intercept Slope 44.81 °C 44.92 °C 44.75 oC 443.75 oC+0.002483 °C/s -0.007984 °CIs 0.008323 °C/s -0.008042 °C/s 4 l.a. Which analysis would be the best one to use (Fig. 1,2,3, or 4)? b. Explain your choice. Discuss why #4 is so different from the others

Explanation / Answer

1. a. figure 1 is the best because almost all data are in the region of quasi-linear portion and the value of slope is least than other. so, this is justified the temperature decay process.

2. incase of # 4, the value of slope is positive. it means temperature is increasing with time and this fact is not possible for temperature decay process.

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