The following table lists World Series lengths for the fifty years from 1926 to 1975. Test at

Question:

The following table lists World Series lengths for the fifty years from 1926 to 1975. Test at the 0.10 level whether these data are compatible with the model that each World Series game is an independent Bernoulli trial with p = P(AL wins) = P(NL wins) = 1/2.
Number of Games Number of Years
4……………………………….. 9
5………………………………..11
6……………………………….. 8
7……………………………….. 22