Preliminary data analyses indicate that the assumptions for using pooled t-procedures are satisfied. independent random samples of released prisoners in the fraud and firearms offense categories yielded the given information on time served, in months. at the 11% significance level, do the data provide sufficient evidence to conclude that the mean time served for fraud is lesser than that for firearms offenses? (note: x overbar 1 = 10.3x1=10.3, s 1 = 4.59s1=4.59, x overbar 2 = 16.84x2=16.84, and s 2 = 4.38s2=4.38.)