Table 1. Regression statistics of extracted cell cake water versus growth medium water for cells harvested under different conditions.

Temperature and growth stage at time of harvest	Slope of regression	R2 value of regression	Standard error of slope	Number of experiments (four cultures per experiment)	P value at which the slope is different from the 37°C log-phase experiments*
37°C, log phase	0.90	0.99	0.019	5	—
37°C, stationary phase	0.96	0.99	0.011	2	0.01†
6°C, log phase	0.98	0.99	0.015	1	0.05‡

^*Confidence level determined in an F test (13).

^†F = 8.38, F_0.01 = 7.88.

^‡F = 7.60, F_0.05 = 4.38.