(a) Use Excel to perform a least-squares analysis of the
data to determine the slope, intercept, and regression statistics, including
the standard deviation about regression.
(b) Use your results to find the concentration of dopamine
in a sample solution that produced a peak current of 2.92 nA. This value is the
average of duplicate experiments.
(c) Calculate the standard deviation of the unknown
concentration and its 95% confidence interval assuming that each of the data in
the table was obtained in a single experiment.