An existing inventory for a test measuring self-esteem

Last updated: 7/19/2022

An existing inventory for a test measuring self-esteem indicates that the scores have a standard deviation of 11. A psychologist gave the self-esteem test to a random sample of 150 individuals, and their mean score was 63. Construct a 95% confidence interval for the true mean of all test scores. Then give its lower limit and upper limit.