Description. Performs a t-test for the comparison of the means of two independent samples. This test is not performed on data in the spreadsheet, but on statistics you enter in a dialog box.escription. Performs a t-test for the comparison of the means of two independent samples. This test is not performed on data in the spreadsheet, but on statistics you enter in a dialog box.
The states with the most weather-related disasters topping more than $1 billion are Texas, Missouri, Alabama, Georgia, Tennessee and South Carolina, which each had at least 31 expensive events in the past 30 years.
The number of natural disasters in Lewis and Clark County (7) is smaller than the US average (12). Major Disasters (Presidential) Declared: 4. Emergencies Declared: 1. Causes of natural disasters: Fires: 3, Floods: 3, Storms: 3, Hurricane: 1, Snow: 1 (Note: Some incidents may be assigned to more than one category).