Worker A
Worker B
Mean time of completing the job (minutes)
30
25
Standard deviation (minutes)
6
4
Which worker appears to be more consistent in the time he requires to complete the job? Explain.
      
      
 
 
Worker A
Worker B
Mean time of completing the job (minutes)
30
25
Standard deviation (minutes)
6
4
Which worker appears to be faster in completing the job? Explain.