Betty, an employee of Shining Sun Daycare Center read an article in Healthy Child Magazine saying that the average 3-year-old child is 37 in. tall. Betty works with 10 3-year-olds at Shining Sun, so later that week, she measured the height of each child who had just turned or was about to turn 3 years old. Here are the descriptive statistics for the sample: M = 35, s = 3.