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The project optimistic estimate is 10 weeks and the pessimistic estimate is 40 weeks. What is the standard deviation of the estimate?

a.4

b.5

c.6.7

d.7.5

Planning Schedule Development Schedule Planning Schedules Project Management
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Question added by Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.
Date Posted: 2016/05/16
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Mohamed Helal
by Mohamed Helal , Project Manager , GROUP CONSULT INTERNATIONAL

Thanks for invitation ..No. b- 5...........................SD = (p − o)/6

Deleted user

Answer is 

B:  5

40-10/6 OR 30/6 = 5

Eng Ahmed Elsharkawy
by Eng Ahmed Elsharkawy , Civil Engineering Project Manager , Altwijry office

thanks for invition ,,,,,,,,,, my choice is option B

Ghada Eweda
by Ghada Eweda , Medical sales hospital representative , Pfizer pharmaceutical Plc.

Agree on expert answers. Thanks

Muhammad Farooq
by Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.

B – By straight calculation: (40-10)/6 or 30/6 = 5

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