1. Barry Um is running an experiment to determine the concentration of collagen
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Question
1. Barry Um is running an experiment to determine the concentration of collagen in the bone of a 68-million-year-old T-Rex fossil. Use Barry's external standard data in the table below to create a calibration curve. Find the equation of the best-fit line with the error in the slope, the error in the intercept, the error in y, and the R^2 value using excel.
When Barry measures the uncorrected absorbance of his dino-samples, he records absorbances of 0.185, 0.188, 0.186, 0.187, and 0.183. What is the amount of collagen present, with error?
2. Many reasearchers question whether or not Barry is actually observing collagen or if it is just contamination. In order to refute his critics, Barry uses another technique using fluorescently labeled collagen mimetic peptides. The results for his clibration curve are given in the table below.
When Barry measures the uncorrected fluorescence of another set of dino-samples, he records fluorescent values of 0.211, 0.212, 0.208, 0.209, and 0.213. What is the amount of collagen present with error?
Do these results agree within experimental error? Statistically prove or disprove accuracy.
Amount of Collagen (mg) Absorbance Corrected Absorbance 0 .099 .000 5.0 .185 .086 10.0 .282 .183 15.0 .345 .246 20.0 .425 .326 25.0 .483 .384Explanation / Answer
1.The amount of collagen present is 12.5.
2.The amount of collagen present is 0.2598.
The method consists of experimental planning,maintain the experiment,stat jugdement.Wrong application of data can give output from difficulties at any stage.The data update appealingly set on the scientific update are very much separate than those impliment on the other side.
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