Is there a significant difference between the groups on the dependent variable? How do you know?

A CEO hired you to determine the effects of 'hard' and 'soft' human resource management practices on sales staff performance. You chose two similar sales teams from the same Page 13 of 20 company, with one subjected to 'hard HRM' and the other to 'soft HRM'. At the end of the quarter their sales figures were noted. You obtain the results below. You made no predictions about which form of HRM would produce the best sales performance. The data is normally distributed. Group Statistics Type of HRM Std Std. Error N Mean Deviation Mean Sales Figures Soft HRM 20 65.1500 5.0396 1. 1269 Hard HRM 20 57.8000 15.2129 3.4017 Levene's Test for Equality of Variances i-test for Equality of Means 95% Confidence Interval of the Sig. Mean Std. Error Difference Sig. d1 (2-tailed) Difference Difference Lowe Upper Sales Figures Equal vanances 18.117 .000 2.051 38 .047 7.3500 3.5835 9.559E-02 14.6044 assumed Equal variances not 2.051 23.121 .052 7.3500 3.5835 -6.09E-02 14.7609 assumed 1. What statistical test should you run to analyze the data? How do you know