A Principal wants to know whether, or not, the program at her school on building self-esteem among children is different from the Government's National program. The program at the national level had an average self-esteem score of 7.2, on a scale of 1-10. What the Principal is not sure of is whether or not the children in her school are taking in the self-esteem information provided by the school counsellors and processing it. Knowing if their average score is different from the national average would help her to make decisions about her school's program. After the counsellors visited all the children in their classrooms, the average self-esteem score from a sample of 125 children in her school is 6.8, with a variance of 2.56. Can you help her to carry out the following?
