(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.15 What is the standard error
of the estimate?
(c) Determine the 95% confidence intervals for the slope and
(d) A serum sample gave an absorbance of 0.350. Find the
glucose concentration and its standard deviation.