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Textbook Expert
Textbook ExpertVerified Tutor
18 Nov 2021

Given information

Suppose    What value of  has a z-score of ?

Step-by-step explanation

Step 1.

For the random variable defined as  the  is given by, 

  

The  tells the position of  with respect to mean .  

When  is positive,  is above or right of the mean, and when  is negative,  is below or left of the mean.

From the given information, is and the random variable is

Therefore,

 

Now, we use the score formula to find the value of ,

 

Hence, the value of is .  

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