Do men with higher levels of a particular hormone show higher levels of assertiv

Do men with higher levels of a particular hormone show higher levels of assertiveness? Levels of this hormone were tested in 100 men. The top 10 and the bottom 10 were selected for the study. All participants took part in a laboratory simulation in which they were asked to role-play a person picking his car up from a mechanic’s shop. The simulation was videotaped and later judged by independent raters on each of four types of assertive statements made by the participant. The results are shown in the table below. Explain these results to a person who fully understands the t test for a single sample but knows nothing about the t test for independent means.
Mean Number of Assertive Statements
Type of Assertive Statement
Group 1 2 3 4
Men with High Levels 2.14 1.16 3.83 0.14
Men with Low Levels 1.21 1.32 2.33 0.38
t 3.81** 0.89 2.03* 0.58
______________________
*p < .05; **p < 0.1