You are conducting a study to determine if there is a significant difference between average adult weight of males and females (in pounds). Calculate the test-statistic, t with the following sample data. n1=55n1=55, x1=145x1=145, s1=9s1=9 n2=25n2=25, x2=148x2=148, s2=3s2=3 Rounded to 2 decimal places.