For a standard normal random variable Z find a number z0 suc

For a standard normal random variable Z, find a number z0 such that the following probabilities are obtained.

Solution

First, we get the z score from the given left tailed area. As          
          
Left tailed area =    0.1      
          
Then, using table or technology,          
          
zO =    -1.281551566   [ANSWER, A]

*****************************

First, we get the z score from the given left tailed area. As          
          
Left tailed area =    0.78      
          
Then, using table or technology,          
          
zO =    0.772193214   [ANSWER, B]

**********************

First, we get the z score from the given left tailed area. As          
          
Left tailed area =    0.95      
          
Then, using table or technology,          
          
zO =    1.644853627   [ANSWER, C]

***************************

First, we get the z score from the given left tailed area. As          
          
Left tailed area =    0.18      
          
Then, using table or technology,          
          
zO =    -0.915365088       [D]

*****************************

First, we get the z score from the given left tailed area. As          
          
Left tailed area =    0.025      
          
Then, using table or technology,          
          
zO =    -1.959963985       [E]

****************************  

  
First, we get the z score from the given left tailed area. As          
          
Left tailed area =    0.25      
          
Then, using table or technology,          
          
zO =    0.67448975