SOLUTION: Find the z-scores for which 20% of the distribution�s area lies between -z and z. A. -0.719, 0.719 B. -0.253, 0.253 C. -0.528, 0.528 D. -0.842, 0.842

Question 522105: Find the z-scores for which 20% of the distribution�s area lies between -z and z.
A. -0.719, 0.719
B. -0.253, 0.253
C. -0.528, 0.528
D. -0.842, 0.842
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the z-scores for which 20% of the distribution�s area
lies between -z and z.
-------------------------------------------
Draw the picture so you can see the sense of the solution.
------
Find the z-value with a left tail of 40%
---
invNorm(0.4) = -0.2533
---------------------------
So the answer is "B".
=======================
Cheers,
Stan H.
=======================
A. -0.719, 0.719
B. -0.253, 0.253
C. -0.528, 0.528
D. -0.842, 0.842

RELATED QUESTIONS
If x > y and y > 0 and xz < 0, then which of the following must be true about all of the... (answered by Fombitz)

I do not have any idea how to even begin this. Can someone please show me how, with the... (answered by oscargut)

I am really confused! 1). Find the area under the standard normal curve for the... (answered by stanbon)

Find the z-scores for which 90% of the distribution's area lies between -z and... (answered by ewatrrr)

find the z scores for which 97% of the distribution's area lies between -z and z. (answered by stanbon)

Find the z-scores for which 90% of the distribution's area lies between -z and z. (answered by Edwin McCravy)

Find the z-scores for which 90% of the distribution's area lies between -z and z. (answered by Theo)

A survey of 45 randomly selected iPhone owners showed that the purchase price has a mean... (answered by Theo)