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.
there is no national law regarding a child s minimum age to stay home alone a few states have set forth an age such as oregon 10 years and maryland 8 years but the majority are either completely silent on the issue or offer only recommendationshere is no national law regarding a child s minimum age to stay home alone a few states have set forth an age such as oregon 10 years and maryland 8 years but the majority are either completely silent on the issue or offer only recommendations