Calcium Uptake Data

SUMMARY:
       The calcium data frame has 27 rows and 2 columns.

       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.

DATA DESCRIPTION:
       This data frame contains the following columns:

time:     The time (in minutes) that the cells were suspended  in
       the solution.
cal:   The amount of calcium uptake (nmoles/mg).

SOURCE:
       The data were obtained from

       Rawlings,  J.O.  (1988)   Applied   Regression   Analysis.
       Wadsworth and Brooks/Cole Statistics/Probability Series.

OTHER REFERENCES:
       Davison, A.C. and Hinkley, D.V. (1997)  Bootstrap  Methods
       and Their Application. Cambridge University Press.