Statistical Power. The Statistical Data Analysis tutorial page provides a good background for understanding the concept of statistical power. In very basic terms, statistical power is the likelihood of achieving statistical significance, when in fact the alternative hypothesis is true.
In 2001, the U.S. Census Bureau estimated that nearly 7 million school-age children are routinely left home alone. âDevelopmentally, children are generally ready to be home alone around the age of 12 or 13,â says Cherie Sage, State Director of Safe Kids Kansas.
The legal age for babysitting in Kansas is the age of 11. I had my 12-year-old watching her brother and sister when I would run to the store, post office, etc. and had a noseyâ¦ neighbor decide he would inform me that my kids were not to be left alone with the oldest until she was 16 legally.