Statistics: Use a table of areas for the standard normal curve to find the required z-score.?
Question by Icey Hott: Statistics: Use a table of areas for the standard normal curve to find the required z-score.?
Hi guys/gals please help me I need help to figure out how to enter the formula to calculate this answer on my TI-84. Can you some please help and list the steps that I need to do in order to come up with the answer. Thanks!
Determine the two z-scores that divide the area under the standard normal curve into a middle 0.874 area and two outside 0.063 areas.
Best answer:
Answer by Julius N
I’m sorry I can’t help you with your calculator, but in case it helps, here are the answers from my Casio calculator.
z = +/- 1.53
P( -1.53
P(z< -1.53)=0.063008
Know better? Leave your own answer in the comments!