A group of 13 children and adolescents (considered healthy) participated in a psychological study designed to analyze the relationship between age and average total sleep time. (ATST). To obtain a measure for ATST (in minutes), recordings were taken on each subject on three consecutive nights and then average. The results obtained and displayed in the following table.

ATST AGE ATST AGE 586 4.4 515.2 8.9 461.75 14 493 11.1 491.1 10.1 528.3 7.75 565 6.7 575.9 5.5 462 11.5 532.5 8.6 532.1 9.6 530.5 7.2 477.6 12.4

Or you can see the attached table below:

ATST AGE ATST AGE 586 4.4 515.2 8.9 461.75 14 493 11.1 491.1 10.1 528.3 7.75 565 6.7 575.9 5.5 462 11.5 532.5 8.6 532.1 96 530.5 7.2 477.6 12.4