The frequencies of different blood types of 200 people who volunteered at a plasma center is given in the table.
|
Blood Type
|
O
|
A
|
B
|
AB
|
Total
|
|
frequency
|
82
|
80
|
20
|
18
|
200
|
Are these four blood types are equally likely? Use a=0.05
-
Identify the parameters
-
Null hypothesis
-
Alternative hypothesis
-
Test statistics
-
Rejection rage
-
Conclusion