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.
2017 may set all-time record for most billion-dollar weather, climate disasters in US history. As the new year gets underway, 2017 is on track to set the all-time record for the most billion-dollar weather and climate disasters in any single year in United States history. Read Story