Antibiotics against Shipping Fever in Calves

Hypothetical drug trial to compare the effect of four antibiotics against Shipping fever in calves (Shoukri and Pause, 1999, Table 3.11).

data(antibio)

Format

A data frame with 24 observations on the following 3 variables.

treatment

A factor with levels 1, 2, 3 and 4

n

A numeric vector: the number of treated animals within a two-week period.

y

A numeric vector: the number of deaths at the end of the two weeks.

References

Shoukri, M.M., Pause, C.A., 1999, 2nd ed. Statistical methods for health sciences. CRC Press, London.