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The CdSe content (g/L) of nanocrystals was measured by two methods
for six different samples shown in the table below (Krucur et al., 2007).
a. Calculate the mean, standard deviation, variance, relative standard
deviation, and confidence interval at 95% (one tail) for each method.
b. Using MS Excel, create a linear regression line between the two
methods and find the equation of the line of best fit and the R² value.
c. Do the two methods differ significantly at the 95% confidence level?
d. Using the Grubbs test, decide whether the numbers 0.88 and 0.83
should be discarded in methods 1 and 2 respectively.
.
Homework
Sample Method 1: Anodic Method 2: Atomic
Stripping
absorption
A
B
с
D
E
F
0.88
1.15
1.22
0.93
1.17
1.51
0.83
1.04
1.39
0.91
1.08
1.31