## Elementary Statistics: Picturing the World (6th Edition)

Answer: $-z = -1.88$ and $z = 1.88$
We know that $P(-z < Z < z) = 0.94$ 1) Area outside the given region: $1 - 0.94 = 0.06$ 2) Thus, the cumulative area is given by $P( Z < -z ) = 0.03$ 3) Use the standard normal table to find the corresponding z score $-z$ $=$ $-1.88$ Thus, approximately 94% of the distribution's area lies between $-z = -1.88$ and $z = 1.88$