A study is done to compare the wages of day care workers in two states. The wages are Normally distributed. The following data is available " =25, x = 122, = 1.8 " = 20, x = 10.6, % = 1.6 We are testing the null hypothesis that the population means are equal. We cannot assume that the variances are equal. We have computed the degrees of freedom to be 42. Find the test statistic. (Provide answer to two decimal places)