Question 2. The mean number of sick days an employee takes per year is believed to be about ten. Members of a personnel department do not agree with this figure. They randomly survey eight employees. The number of sick days they took for the past year are as follows: 12; 4; 15; 3; 11; 8; 6; 8. Test the claim at 0.01 level by using both the classical approach and the p-value approach. (Hint: you need to fine the sample mean and sample standard deviation first.)