Answer:
The job should be offered to Kaitlyn
Step-by-step explanation:
From the question we are told that
The data for Demetria is
Test score is 71.4
The mean is 66.6
The standard deviation is 8
Generally the z-sore for Demetria is mathematically evaluated as
[tex]z - score = \frac{ 71.4 - 66.6 }{ 8}[/tex]
= > [tex]z - score = 0.6[/tex]
The data for Norma is
Test score is 258.3
The mean is 238
The standard deviation is 29
Generally the z-sore for Norma is mathematically evaluated as
[tex]z - score = \frac{ 258.3 - 238 }{ 29}[/tex]
= > [tex]z - score = 0.7[/tex]
The data for Kaitlyn is
Test score is 8
The mean is 7.2
The standard deviation is 0.4
Generally the z-sore for Norma is mathematically evaluated as
[tex]z - score = \frac{ 8 - 7.2}{ 0.4}[/tex]
= > [tex]z - score = 2[/tex]
Now given that the z-score of Kaitlyn is the highest it means that performed best and should be given the job
