A biologist studying a population of birds comprised of some individuals with long-tailed and some short-tailed individuals. She is interested in whether a population of birds is randomly mating or if the birds are preferentially mating with their own tail type. In this species tail length is controlled by a single gene with two alleles (T=long, t=short) where the long tail is dominant. To examine this aspect the scientist will use controlled populations of birds and assess the results of the mating that occurs.

Write an appropriate null and alternative hypothesis for this experiment.