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$1.00 bus 3059 wk3, a2

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  • Due on Jul. 20, 2012
  • Asked on Jul 17, 2012 at 6:37:50PM
Asked by :
slemon
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Questions Asked: 19
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Q:

Calculate the return on equity (ROE) for a sample of 20 banks for the
year before the Sarbanes-Oxley Act was enacted. For the same sample of banks,
calculate the ROE for the year following the enactment of the Sarbanes-Oxley
Act.

 

Then, answer the following questions:



  • Was the average bank’s ROE lower following the enactment of the

    Sarbanes-Oxley Act than before the act? If so, why do you think that was the
    case?
  • What’s the null hypothesis for this hypothesis test?
  • What’s the alternative hypothesis for this hypothesis test?
  • Choose at least three different significant levels to conduct the
    hypothesis test. Is it possible that a Type I error occurred with the hypothesis
    test? Why or why not?
  • Is it possible that a Type II error occurred? Why or why not?
 

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BUS 3059 Week-3 Assignment -2 Hypothesis Testing
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  • Posted on Jan. 25, 2013 at 03:36:32AM
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dinkerj
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