Test statistics that follow a chi-squared distribution arise from an assumption of independent normally distributed data, which is valid in many cases due to the central limit theorem. A chi-squared test can be used to attempt rejection of the null hypothesis that the data are independent.
Voles, also known as mice, live in field, forest, and shrub habitats. Voles can cause extensive damage when they move into our turf and landscaped gardens in search of food and shelter. Voles do not hibernate and are active throughout the year. They can reproduce year round having many litters per year.
How to Kill Voles. If you need vole help, click on my Nationwide List of Vole Removal Experts for a pro near you. How to Kill a Vole. Voles live just about everywhere in the US and Canada depending on the type of vole. There are 23 vole species in the United States.f you need vole help, click on my Nationwide List of Vole Removal Experts for a pro near you. How to Kill a Vole. Voles live just about everywhere in the US and Canada depending on the type of vole.