Two independent samples from normal distributions are being compared. The sample data are summarized in the table.

Population Population Sample Sample Sample standard Standard error mean size mean deviation estimate 1 pl (unknown) :11 = 17 fl = 14.2 31 = 2.005 SE1 = 0.436 2 #2 (unknown) "Q = 15 2 = 12.6 s; = 1.950 SE; = 0.503 The estimated standard error of the difference of the two sample means is SE = 0.?00. Compute the value of the twonsample twstatistie used to test the null hypothesis H0 : p1 = #2. Please give your answer precise to three decimal places