Choose one answer.

a. 0.1685

b. 0.8315

c. 0.1591

d. 0.3315

e. None of these are correct.

z=44500-42100/2510=0.9562 probability using the z-table= .8292

z=48000-42100/2510=2.3506 prob=.9893

.8292-.9893=

**.1601**

But this answer is not one of the choices. The professor told us that some of our numbers may be a little off due to rounding. So, before I choose E none of these are correct...is it possible the answer could be 0.1685 or 0.1591?

Or maybe I did the calculations wrong? Please help me. I will be so grateful!