For a normal distribution, a. Whatz-score separates the ...

[D2AR0N]

For a normal distribution,
 
  a. Whatz-score separates the highest 25 from the rest of the scores?
  b. Whatz-score separates the highest 60 from the rest of the scores?
  c. Whatz-score separates the lowest 30 from the rest of the scores?
  d. Whatz-score separates the lowest 80 from the rest of the scores?

Question 2

For each of the following z-score locations in a normal distribution, determine whether the tail is on the left side or the right side of the distribution and find the proportion that is located in the tail.
 
  a. z= +1.75
  b. z= +0.80
  c. z= 0.70
  d. z= 1.65

[soda0602]

Answer to Question 1

a. z= 0.67
b. z = 0.25
c. z = 0.52
d. z = 0.84

Answer to Question 2

a. Right 0.0401
b. Right 0.2119
c. Left 0.2420
d. Left 0.0495