A Random Sample of 20 Companies Who Announced Corrections to Their

question 29

Multiple Choice

A random sample of 20 companies who announced corrections to their balance sheets took a mean time of 8.9 days for the time between balance sheet construction and the complete audit. The standard deviation of these times was 1.3 days. Assume that these times are normally distributed.

-The null and alternative hypotheses to provide evidence supporting the claim that ? is greater than 7.5 days which was the previous year amount is _____.

• A)H_O: ? = 7.5 vs.H_A: ? ? 7.5
• B)H_O: ? ? 7.5 vs.H_A: ? < 7.5
• C)H_O: ? ? 8.9 vs.H_A: ? < 8.9
• D)H_O: ? ? 7.5 vs.H_A: ? = 7.5
• E)H_O: ? ? 7.5 vs.H_A: ? > 7.5

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