The figure shows a standard normal N(0, 1) distribution. Find the z value for the shaded area. C.2 gives P(z

Question

The figure shows a standard normal N(0, 1) distribution. Find the z value for the shaded area.  C.2 gives P(z < -2.17) = .0150 or use Excel =NORM.S.INV(0.015) = -2.17.
A)-2.17 
B)-2.09 
C)-1.99 
D)-1.94

Quizplus · Accepted Answer

The shaded area represents the probability of P(z < -2.17), which is given in C.2 as .0150 or calculated using Excel =NORM.S.INV(0.015) = -2.17. Therefore, the answer is choice A, -2.17. None of the other choices are correct.

The Figure Shows a Standard Normal N(0, 1) Distribution