Project 9: The number of colonies of bacteria present per
millimeter of processed whole milk after holding the sample for
two days under refrigeration at 45 degrees Fahrenheit - results
for samples from 36 consecutive days.

Bacteria plate counts for milk samples from 36 consecutive days:
Colonies/ml of whole milk (read across)

Old training method

290  260  270  230  300  310  300  280  230  300
260  300  270  230  290  310  260  270  240  310  
270  260  270  310  280  260  300  290  270  270  
250  240  280  260  250  280

New training method

245  210  215  175  255  265  240  225  185  255
205  260  220  190  230  260  210  200  300  265
215  210  220  255  235  240  200  235  210  195  
220  190  240  230  210  200