Hi guys! I really need help with this because im so stressed with my other classes and i need to pass this class in order to graduate. can someone help

How to do this , and can some one explain

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125

Which one is true about the hexagons ?