6. Exercise 10.37 eBook Exercise 10.37) Auditors must make judgments about vario

Question

6. Exercise 10.37 eBook Exercise 10.37) Auditors must make judgments about various aspects of an audit on the basis of their own direct experience, indirect experience, or a combination of the two. In a study, auditors were asked to make judgments about the frequency of errors to be found in an audit. The judgments by the auditors were then compared to the actual results. Suppose the following data were obtained from a similar study; lower scores indicate better judgments WEB Indirect 16.6 22.2 20.5 18.3 24.2 19.8 21.2 Direct Combination 25.2 24.0 21.5 26.8 27.5 25.8 24.2 17.0 18.5 18.2 20.2 16.0 13.3 Use a.05 to test to see whether the basis for the judgment affects the quality of the judgment. Direct Experience Indirect Experience Combination Sample Mean (to 1 decimal) Sample Variance (to 2 decimals) What is your conclusion? Select your answer- the null hypothesis that the means for the three groups are equal

Explanation / Answer

The statistical software output for this problem is:

Summary statistics:

Hence,

Reject the null hypothesis.

Column Mean Variance Combination 25 4.01 Direct 17 5.01 Indirect 20.4 6.2566667

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