Among n babies born in a certain city, 51% were boys.28 Suppose we want to test the

Question:

Among n babies born in a certain city, 51% were boys.28 Suppose we want to test the hypothesis that the
true probability of a boy is 1/2. Calculate the value of x2s, and bracket the P-value for testing against a non directional alternative, if
(a) n = 1,000
(b) n = 5,000
(c) n = 10,000