Answer
$r=0.951$
The linear correlation coefficient was not affected by the conversion from millimeters to inches.
Work Step by Step
In MINITAB, enter the converted right humerus values in C3 and in C4 enter the converted right tibia values.
Select Stats -> Basic Statistics -> Correlation
In "Variables" enter C3 C4
You may deselect "Display p-values".
The correlation between right humerus and right tibia will be given.
