The average world height for females is is 62.8 inches. Last semester, we want to know if our class average height different than the average female's height at an alpha level of 0.05 (2-tailed), Report your t-obtained below rounded to 2 decimal places. Class self-reported height is below in inches: 62, 62, 63, 63, 64, 64, 65, 65, 66, 66, 67, 67, 67.2, 68, 68, 68, 69, 69, 69, 70, 76