Senior management is scheduled to review the labor estimate for developing softw

Question

Senior management is scheduled to review the labor estimate for developing software for X i The project manager requested an analysis of past performance. The assigned analyst compared the actual labor with the initial estimate for the 30 most recent projects. The results, X-actua-initial estimate (in thousands of hours), are as follows 7.2 4.8 9.1 13.2 3.9 6.7 0.1 2.8 10.2 3.8 4.2 16.5 10.9 7.4 5.1 18.1 3.1 9.5 2.5 12.5 4.2 5.5 0.5 1.9 15.2 14.1 8.3 11.5 11.9 2.Select an appropriate probability distribution and provide your rationale

Explanation / Answer

The data should be normally distributed with the mean being 0 . Since the average of labour hours actual is expected to be close to the mean value.

This is the rationale for using estimates in the first place.

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