1) Find the z-score for which the area to its right is 0.33 .

Write only a number as your answer. Round to two decimal places (for example: 0.81).Answer:

2)Thez-scores that bound the middle 54 % under the standard normal curve arez= -aandz=a. Find the value ofa.

Write only a positive number as your answer. Round to two decimal places (for example: 0.81).

3)Find the z-score for which the area to its left is 0.74

Write only a number as your answer. Round to two decimal places (for example: 0.81).

4) Thez-scores that bound the middle 42% under the standard normal curve arez= -aandz=a. Find the value ofa.

Write only a positive number as your answer. Round to two decimal places (for example: 0.81).