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.
When can I leave my child home alone? This is a questions that is asked daily to Child Safe Canada instructors! The age at which children in Canada can legally be left at home alone for reasonable and short periods of time varies from province to province, ranging anywhere from 10 to 12 years. Some provinces place that decision into a parentâs hands ( assuming they are responsible and not placing a child in harmâs way).