Hi
Can someone help me on the following questions:
Determine the value of z in the following case: Pr(-z<Z<z)=0.954
I done InvNorm(0.954,0,1) but this is incorrect
Find the quartiles of the standard normal distribution?
P.S
because normally on datasheets, $\displaystyle \textrm{P}(Z<z)$ is given,
so after halving 0.954 you'll get $\displaystyle \textrm{P}(0<Z<z)$. In order to get the above value you should add 0.5 (because the graph is symmetrical around P(z) axis)