Test the null hypothesis at the .01 level of significance that the distribution of blood types for college students complies with the proportions described in the blood bank bulletin, namely, :

.44 for O

.41 for A

.10 for B

.05 for AB

Now, however, assume that the results are available for a random sample of only 60 students. The results are as follows:

27 for O

26 for A

4 for B

3 for AB

NOTE: The expected frequency for AB, (.05)(60) = 3, is less than 5, the smallest permissible expected frequency.

Combine B and AB into one grouping