Type II Decision Error : A decision error that occurs when the null hypothesis is accepted when it is false. The probability of making a Type II decision error is called beta ()
U.S. Environmental Protection Agency, Radiation Glossary, Office of Radiation and Indoor Air Radiation Protection Division, Washington, DC, USA 2013. http://www.epa.gov/radiation/glossary/index.html#a , (Dzstr/ Rad Emr - Amer) {823}
