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A Random Sample of 80 Companies Who Announced Corrections to Their

Question 103

Multiple Choice

A random sample of 80 companies who announced corrections to their balance sheets took a mean time of 8.1 days for the time between balance sheet construction and the complete audit.The standard deviation of these times was 1.3 days.What is the critical value for α\alpha = .001 to test the claim that μ\mu is greater than 7.5 days.


A) 2.575
B) 3.09
C) -1.96
D) -2.575
E) -3.09

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