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For items 18 to 21: The first digits of legitimate records such as invoices and expense account claims often follow the distribution known as Benford's Law, as shown below: 4 6. 7 8. 6. First Digit 1 Probability 0.30 0.18 0.13 0.10 0.08 0.07 0.06 0.05 0.05 A purchasing manager is faking invoices to steer payments to a company owned by her brother. She cleverly generates random numbers to avoid obvious patterns. Here are the counts of first digits in a sample of 45 invoices examined by an auditor: First Digit 1 3 4 5 6 7 8 9 Count 4 4 4 Is there sufficient evidence to suggest that the first digits of the invoices produced by the manager does not follow Benford's Law? Use a 0.05 level of significance. LO 1. What is an appropriate null hypothesis for this test? O The first digit of the invoices do not follow Benford's Law. O The first digit of the invoices follows Benford's Law. O The generated first digit of the invoices are fake. O The first digits of the invoices are independent of Benford's Law.

For items 18 to 21: The first digits of legitimate records such as invoices and expense account claims often follow the distribution known as Benford's Law, as shown below: 4 6. 7 8. 6. First Digit 1 Probability 0.30 0.18 0.13 0.10 0.08 0.07 0.06 0.05 0.05 A purchasing manager is faking invoices to steer payments to a company owned by her brother. She cleverly generates random numbers to avoid obvious patterns. Here are the counts of first digits in a sample of 45 invoices examined by an auditor: First Digit 1 3 4 5 6 7 8 9 Count 4 4 4 Is there sufficient evidence to suggest that the first digits of the invoices produced by the manager does not follow Benford's Law? Use a 0.05 level of significance. LO 1. What is an appropriate null hypothesis for this test? O The first digit of the invoices do not follow Benford's Law. O The first digit of the invoices follows Benford's Law. O The generated first digit of the invoices are fake. O The first digits of the invoices are independent of Benford's Law.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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For items 18 to 21: The first digits of legitimate records such as invoices and expense account claims often follow the distribution known as Benford's Law, as shown below: 4 6. 7 8. 6. First Digit 1 Probability 0.30 0.18 0.13 0.10 0.08 0.07 0.06 0.05 0.05 A purchasing manager is faking invoices to steer payments to a company owned by her brother. She cleverly generates random numbers to avoid obvious patterns. Here are the counts of first digits in a sample of 45 invoices examined by an auditor: First Digit 1 3 4 5 6 7 8 9 Count 4 4 4 Is there sufficient evidence to suggest that the first digits of the invoices produced by the manager does not follow Benford's Law? Use a 0.05 level of significance. LO
Transcribed Image Text:For items 18 to 21: The first digits of legitimate records such as invoices and expense account claims often follow the distribution known as Benford's Law, as shown below: 4 6. 7 8. 6. First Digit 1 Probability 0.30 0.18 0.13 0.10 0.08 0.07 0.06 0.05 0.05 A purchasing manager is faking invoices to steer payments to a company owned by her brother. She cleverly generates random numbers to avoid obvious patterns. Here are the counts of first digits in a sample of 45 invoices examined by an auditor: First Digit 1 3 4 5 6 7 8 9 Count 4 4 4 Is there sufficient evidence to suggest that the first digits of the invoices produced by the manager does not follow Benford's Law? Use a 0.05 level of significance. LO
1. What is an appropriate null hypothesis for this test? O The first digit of the invoices do not follow Benford's Law. O The first digit of the invoices follows Benford's Law. O The generated first digit of the invoices are fake. O The first digits of the invoices are independent of Benford's Law.
Transcribed Image Text:1. What is an appropriate null hypothesis for this test? O The first digit of the invoices do not follow Benford's Law. O The first digit of the invoices follows Benford's Law. O The generated first digit of the invoices are fake. O The first digits of the invoices are independent of Benford's Law.
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