Find z-scores for a Given Area
-Find the $z$-scores for which $98 \%$ of the distribution's area lies between $- z$ and $z$.
A) $( - 2.33,2.33 )$
B) $( - 1.645,1.645 )$
C) $( - 1.96,1.96 )$
D) $( - 0.99,0.99 )$

Question

Quizplus · Accepted Answer

For 98% of the distribution's area to lie between -z and z, we look for the z-scores that correspond to the tails of 2% (100% - 98%), which is 1% in each tail. The z-score that corresponds to an area of 0.01 in the tail is approximately ±2.33, which means 98% of the area lies between -2.33 and 2.33.

Find Z-Scores for a Given Area -Find The zzz -Scores for Which

Find Z-Scores for a Given Area
-Find The $z$ -Scores for Which