orob1 {aods3}

Germination Data

Description

Data describing the germination for seed Orobanche cernua cultivated in three dilutions of a bean root extract (Crowder, 1978, Table 1). The mean proportions of the three groups are 0.142, 0.872 and 0.842, and the overall mean is 0.614.

Usage

data(orob1)

Format

A data frame with 16 observations on the following 3 variables.

dilution

a factor with 3 levels: 1/1, 1/25 and 1/625

.

n

a numeric vector: the number of seeds exposed to germination.

m

a numeric vector: the number of seeds which actually germinated.

References

Crowder, M.J., 1978. Beta-binomial anova for proportions. Appl. Statist. 27, 34-37.