Statistics Meeting Book (May 15, 2019)

dPOD Plot for E. coli O1H57:H7 in Apple Juice - SLV

-0.6 -0.4 -0.2 0.0 0.2 0.4 0.6

dPOD

Observed dPOD dPOD = 0

0.0

0.5

1.0

1.5

2.0

copyright 2016 by Least Cost Formulations, Ltd., all rights reserved. Concentration (CFU/25g)

5

Paired Studies • When comparing the 2 methods, and the methods use the same enrichment from the same test portion. • OR • Presumptive/Confirmation studies will always give paired results

6

copyright 2016 by Least Cost Formulations, Ltd., all rights reserved.