Question: The following is a sample of ages at death of 32 people who suffered from sickle-cell anemia:

16, 27, 21, 7, 24, 2, 45, 14, 31, 5, 45, 37, 33, 31, 27, 9, 24, 37, 38, 30, 18, 10, 28, 16, 6, 8, 40, 14, 32, 62, 66, 67

At 3% level of significance, carry out the test (i) by classical method (using critical values) and (ii) by p-value that the mean age is 32 against that it is less.