Concept explainers
a.
To find: The standard deviation of Y .
a.
Answer to Problem 17E
The standard deviation of Y is 2.5820.
Explanation of Solution
Given:
The figure is:
The mean is 5
Calculation:
The standard deviation of Y can be calculated as:
Thus, the standard deviation is 2.5820.
b.
To find: The standard deviation of Y using Benford’s law and explain if this law is useful in detecting the fraud.
b.
Answer to Problem 17E
The standard deviation is 2.4618.
Explanation of Solution
Calculation:
The standard deviation of Y can be calculated as:
Thus, the standard deviation is 2.5820.
Since, the standard deviation is close to the above part. Thus, it is not a good way to detect fraud.
Chapter 6 Solutions
The Practice of Statistics for AP - 4th Edition
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Elementary Statistics (13th Edition)
Introductory Statistics (2nd Edition)
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