Eric is an administrator at a local sales department. His manager assigned him to create a report on the number of stages in changing from Unqualified to Qualified for all 25 sales representatives in the team. The number of stage changes mentioned in his report is as follows:

13 5 12 7 6 5 6 14 9 2 11 6 8 5 13 13 8 7 3 8 5 10 17 7 7

a. What is the extreme sampling error range for a sample of size n = 6 selected from the report?

b. What is the extreme sampling error range if a random sample of size n = 10 is selected?

Compare your answer to part a and explain the differences.