Respuesta :

Mean = u = 720
Standard deviation = s = 6
Data Value = x = 709

The formula to calculate the z score is:

[tex]z= \frac{x-u}{s} [/tex]

Using the values, we get:

[tex]z= \frac{709-720}{6} \\ \\ z=-1.83 [/tex]

Thus the z score for the data value will be -1.83. 
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