Please choose from 1 of the 3 options, thanks!

The optimum range for E-Coli growth are pH between 5.5-7.0 and temperature between 36 and 42C. The accepted measurement error for pH is +/- 0.5 pH units. The error in temperature measurement is roughly 0.5C. Which among the two measurements requires more attention? The level of attention should be based on the age of the instrument Since the magnitude of both errors is 0.5, they should be treated similarly. pH needs more care as the ratio of acceptable-range to error is smaller (3 versus 12)