Question 1117334
1.645 is your answer.


you can use the z-score table to find it, or you can use a z-score calculator.


the one i used is at <a href = "http://users.stat.ufl.edu/~athienit/Tables/Ztable.pdf" target = "_blank">http://users.stat.ufl.edu/~athienit/Tables/Ztable.pdf</a>


per the table, look for an area of .95 to the left of the z-score.


that would leave .05 to the right.


the z-score table will not be right on .95.


it will show you an area of .9495 and .9505.


.9495 corresponds to a z-score of 1.64
.9505 corresponds to a z-score of 1.65


.05 is in between at 1.645.


if you used a z-score calculator, it would tell you that the z-score is 1.644853626.


round that to 3 decimal places and you get 1.645.