13. A study of sterility in the fruit y ( Hybrid Dysgenesis in Drosophila melanogaster: The Biology of Female and Male Sterility, Genetics, 1979:

161—174) reports the following data on the number of ovaries developed for each female y in a sample of size 1388. One model for unilateral sterility states that each ovary develops with some probability p independently of the other ovary. Test the t of this model using x2.

x  Number of Ovaries Developed 0 1 2 Observed Count 1212 118 58