Howard Grimes from the Botany Department, North Carolina State
University, conducted an experiment for biochemical analysis of
intracellular storage and transport of calcium across plasma
membrane. Cells were suspended in a solution of radioactive
calcium for a certain length of time and then the amount of
radioactive calcium that was absorbed by the cells was measured.
The experiment was repeated independently with 9 different times
of suspension each replicated 3 times.
References
Davison, A. C. (2003) Statistical Models. Cambridge University Press.
Page 469.