Question

. Find the value of Z if the normal curve area between 0 and Z (positive) is 0.4332.

Answer 1

$$P(0<Z<z)=P(Z<z)-P(Z\leq0)=$$

$$=P(Z<z)-0.5=0.4332$$

$$P(Z<z)=0.9332$$

$$z\approx1.50$$