A. By adding 3 in each of the following in the set 6, 3, 5, 9, 7, 4 we obtain the set 9, 6, 8, 12, 10 and 7. Show how these 2 sets have the same standard deviations but different means.
B. After 3 months of training between these 2 employees, the proficiency test results were as follows:
Employee A: 58, 59, 60, 54, 65, 66, 52, 75, 69, 52
Employee B: 56, 87, 89, 78, 71, 73, 84, 65, 66, 48
Who do you consider more consistent? Show the statistical proof.
C. The following are the wages per hour of call center agents in a certain company:
Wages No.
P 60-61 12
P 62-63 18
P 64-65 27
P 66-67 20
P 68-69 25
P 70-71 22
P 72-73 17
P 74-75 15
P 76-77 10
Determine the following:
1. Quartile Deviations of their wages
2. Standard Deviation of their wages
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