If value of x-bar is 70 and μ of sampling distribution is 15 with standard deviation is 20 then standard normal variable is?

 

  1. 2.75
  2. 3.75
  3. 4.75
  4. 5.75

    Right Answer: 2.75

January 6, 2018   Asghar Khan    Statistic  
Total 0 Votes:
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