Based on the below information from two samples, what is the result of the test statistic? Sample 1 Sample 2 x 1 = 51.3 x 2 = 53.2 12 = 52 22 = 60 n1 = 31 n2 = 32 1. -1.01 2. 1.28 3. -1.28 4. 2.41