High-Stress Group Low-Stress Group Variables Mean SD Mean SD t Performance Rating 4.35 2.08 3.10 .97 2.43 Satisfaction 3.85 0.75 12.10 3.13 -11.48* *p < 0.01 (4.1) How are the standard deviations for satisfaction different for the two groups? Write one or two sentences explaining what the different standard deviations mean in terms of the satisfaction reported by the two groups. [10 points]