Question 44657
p(-c _< Z _<c)= 0.9668

How you do this problem depends on how your "Z-chart"
is set up.
If it gives you area values only to the right of z=0
you want the z value that corresponds to an area of 
0.9668/2 = 0.4834 to the right of z=0.
That z-value is 2.212965...

If you are using a TI calculator you want 
InVNorm(0.9668)
Cheers,
Stan H.