The data in the table below were obtained during a

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Reference no: EM13344967

The data in the table below were obtained during a colorimetric determination of glucose in blood serum.

Glucose Absorbance,

concentration, NM A

0.0 0.002

2.0 0.150

4.0 0.294

6.0 0.434

8.0 0.570

10.0 0.704

(a) Assuming a linear relationship, find the least-squares estimates of the slope and intercept.

(b) Use the LINEST function in Excel to find the standard deviations of the slope and intercept. (See S.R. Crouch and F.J. Holler, Applications of MicrosoftÂ® Excel in Analytical Chemistry, Belmount, CA: brooks/Cole, 2004, Chap.4) What is the standard error of the estimate?

(d) A serum sample gave an absorbance of 0.350. Find the glucose concentration and its standard deviation.

Reference no: EM13344967

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