Posted by Robbie on Sunday, October 14, 2012 at 12:08am.
What zscore values form the boundaries for the middle 60% of a normal
distribution?
a. z = +0.25 and z = –0.25
b. z = +0.39 and z = –0.39
c. z = +0.52 and z = –0.52
d. z = +0.84 and z = –0.84

statistics  MathGuru, Monday, October 15, 2012 at 8:35pm
How about d?

statistics  joe, Sunday, September 25, 2016 at 5:23pm
what was the answer???
Answer This Question
Related Questions
 statistics  For a normal distribution with a mean of 140 and a standard ...
 statistics  For a normal distribution with µ = 200 and ó = 50, what X values ...
 statistics  Find the Zscore that separate the middle 63% of the distribution ...
 stats  A particular normal distribution has mean of 575 and standard deviation ...
 Statistics  Consider the standard normal distribution. Find the area for the z...
 Statistics  a normal distribution ha am ean of 80 with a standard deviation of ...
 Statistics  Scores on the SAT form a normal distribution with u=500 and o=100. ...
 statistics  a normal distribution has a mean of 20 and a standard deviation of ...
 statistics  A distribution of values follows a N(140,22) distribution. From ...
 Statistics  The next three questions refer to the following situation. Data ...
More Related Questions