Short Answer
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 population standard deviation is assumed to be 1.3 days. If the claim is that the population mean is greater than 7.5 days, calculate the appropriate test statistic to test the hypotheses.
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Correct Answer:
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z = (...
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