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 $\alpha$ = .001 to test the claim that $\mu$ 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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