ABC Company's internal auditor claims that 15% of the company's invoices are incorrect. To test his claim a random sample of 250 invoices is checked and 45 are found to be incorrect. Test at 1% significant level if the internal auditor's claim is supported by the sample evidence. Critical Value = 2.58

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 3GP
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ABC Company's internal auditor claims that
15% of the company's invoices are incorrect.
To test his claim a random sample of 250
invoices is checked and 45 are found to be
incorrect. Test at 1% significant level if the
internal auditor's claim is supported by the
sample evidence. Critical Value = 2.58
Transcribed Image Text:ABC Company's internal auditor claims that 15% of the company's invoices are incorrect. To test his claim a random sample of 250 invoices is checked and 45 are found to be incorrect. Test at 1% significant level if the internal auditor's claim is supported by the sample evidence. Critical Value = 2.58
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