Mating habits of snails. Genetical Research (June 1995) published a study of the mating habits of hermaphroditic snails. The mating habits of the snails were identified as either self-fertilizing or cross-fertilizing.
The effective population sizes of the two groups were compared. The data for the study are summarized in the table.
Geneticists are interested in comparing the variation in population size of the two types of mating systems. Conduct this analysis for the researcher. Interpret the result.
