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Ruth and her colleagues developed a spectrophotometric method for the determinat

ID: 1037911 • Letter: R

Question

Ruth and her colleagues developed a spectrophotometric method for the determination of Fe3 + in biological samples. As part of their study, the concentration of Fe3 + in human serum samples was determined using their new method and the standard method of AOOC. The results obtained with both methods, in concentrations ?mol / L, are shown in the following table: Determine if there is a significant difference between the averages and the accuracy of the two methods at ? = 0.05. Show all your calculations and reasoning to receive credit.

New Standarod Sample Method Method 8.25 9.75 9.75 9.75 10.75 11.25 8.06 8.84 8.36 8.73 13.13 13.65 13.85 13.53 14.25

Explanation / Answer

Sample New Method Standard method 1 8.25 8.06 2 9.75 8.84 3 9.75 8.36 4 9.75 8.73 5 10.75 13.13 6 11.25 13.65 7 13.88 13.85 8 14.25 13.53 Total 87.63 88.15 Average 10.95375 11.01875 difference between two is very low =0.065 both are similar