Answer :
First, express the interval in decimal form:
(0.302, 0.44)
Now find the average value of the endpoints of the interval. This will give us the value of p:
[tex]p=\frac{0.302+0.44}{2}=0.371[/tex]Now find the semi difference of the endpoints to have the value of ME:
[tex]ME=\frac{0.44-0.302}{2}=0.069[/tex]Now express the interval in the required form:
[tex](0.32,0.44)=0.371\pm0.069[/tex]