Answer
P-value $\gtα$. Do not reject the null hypothesis.
There is not enough evidence to conclude that the median tibia length in the experimental group is greater than the median tibia length in the control group.
Work Step by Step
$H_0: M_{EG}=M_{CG}$ versus $H_1: M_{EG}\gt M_{CG}$
In MINITAB, enter the Experimental Group values in C1 and the Control Group values in C2.
Select Stat -> Nonparametrics -> Mann-Whitney
In "First Sample" enter C1 and in "Second Sample" enter C2. In "Confidence Level" enter 90. In "Alternative" select "greater than".
P-value $=0.131\gtα=0.1$