Blood Types A medical researcher wishes to see if hospital patients in a large hospital have the same blood type distribution as those in the general population. The distribution for the general population is as follows:

Type A, 20%;

Type B, 28%;

Type O, 36%;

And type AB = 16%.

He selects a random sample of 50 patients and finds the following:

12 have type A blood,

8 have type B,

And 24 have type O,

And 6 have type AB blood.