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EMIS 7305 Homework 10 - Project Cost Estimation Senior management is scheduled to review the labor estimate for developing software for iX. The...

I only need the last questions answered. So, letter c with subsections i-iii.
EMIS 7305 Homework 10 – Project Cost Estimation 1 Senior management is scheduled to review the labor estimate for developing software for iX. 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= actual – initial estimate ( in thousands of hours), are as follows: 15.2 7.2 0.1 10.9 2.5 14.1 4.8 -2.8 7.4 12.5 8.3 9.1 10.2 5.1 -4.2 6.0 13.2 3.8 18.1 5.5 11.5 3.9 4.2 3.1 -0.5 11.9 6.7 16.5 9.5 1.9
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EMIS 7305 Homework 10 – Project Cost Estimation 2 (a)Analyze the results and summarize your conclusions. (b)(b) Select an appropriate probability distribution and provide your rationale.
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Statistics and Probability-8189542.xls

15.2 7.2
14.1
8.3
6
11.5
11.9 0.1
4.8
9.1
13.2
3.9
6.7 10.9
-2.8
10.2
3.8
4.2
16.5
7.19
5.593306
30 2.5
7.4
5.1
18.1
3.1
9.5 12.5
-4.2
5.5
-0.5
1.9
If X has a normal probability distribution,
i....

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