Independent Samples t Test. The Independent Samples t Test compares the means of two independent groups in order to determine whether there is statistical evidence that the associated population means are significantly different. The Independent Samples t Test is a parametric test.he calculated t value is then compared to the critical t value from the t distribution table with degrees of freedom df = n 1 + n 2 - 2 and chosen confidence level. If the calculated t t value, then we reject the null hypothesis. Note that this form of the independent samples T test statistic assumes equal variances.
1. Five states are responsible for almost half of NFL draft picks. In the past three NFL drafts, players from Florida, Texas, California, Georgia and Ohio made up 47.3% of the 763 players selected. In 2013, the percentage was 51.3%. 2. Mobile has the most draft picks per capita.
The Unofficial 2013 NFL Player Census. For the most up-to-date information, check out the 2014 NFL Player Census. With nearly 1,700 different players, the NFL is home to a highly diverse sample of the human population. Many players grew up in US metropolis cities like Los Angeles or New York, but some were born in the exact middle of nowhere.