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plz answer Question 20 10 pts An auditor was hired to verify the accuracy of a company's new billing system. Sixty (60) invoices produced since

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Question 20 10 pts An auditor was hired to verify the accuracy of a company's new billing system. Sixty (60) invoices produced since the system was installed were sampled. The sample mean dollar errors on the invoices was $954.00. Assume the population standard deviation is $124.00. Construct a 90% confidence interval for the mean dollar errors per invoice. O [937.99 970.00] O [922.62 985.38] O [927.67 980.33] O [750.02, 1, 157.98] None of the above 10 pts D Question 21

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