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Table 4 Model Fit Comparison for Seroconversion in Oral Exposed Young rat (3 days old)

From: Dose-response model of murine typhus (Rickettsia typhi): time post inoculation and host age dependency analysis

Data set Number of Doses Model Minimized Deviance Degrees of Freedom χα,n-k 2 Parameters Difference in deviances χ 2 Value at 1 degree of freedom
[9] 5 Exponential 34.63 4 11.07 k = 0.0006 31.60 3.84
  5 Beta Poisson* 3.023 3 9.48 α = 0.286   
       N50 = 25.7   
  1. *Best fit model