Skip to main content
. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Mol Cancer Ther. 2010 Apr 27;9(5):1469–1481. doi: 10.1158/1535-7163.MCT-10-0157
Wherein:
X = the mean fluorescence intensity per bead region per well
tα/2 = 2-tailed t distribution, for a specified level of confidence (α)
n-1 = degrees of freedom (df), sampled bead count per region per well minus one
σ = standard deviation of the fluorescence intensity per bead region per well
n = sample size, the number of beads sampled per bead region per well