### Statistical Analysis for a Random Sample

Independent random samples from approximately normal populations produced the results shown below. Complete parts a and b. Sample 1: 42, 29, 38, 37, 40, 40, 22, 39, 57, 55 Sample 2: 70, 55, 50, 54, 52, 23, 30, 30, 43, 61 a. Do the data present sufficient evidence to conclude that u1 - u2 does not equal 0? Use alpha = 0.