dammyshaggs
New Member
- Joined
- Sep 17, 2018
- Messages
- 5
Been having hard time solving this question.I got it wrong and i believe the workings used is the cause of it.
Question 1
The following file describes the situation faced by a landscaping company, 'Landscaping Solutions'.
If there is great weather, the company takes the following hours to complete a driveway, backyard, front yard, back verandah, and front porch: 20, 30, 25, 25, and 20 hours respectively.
Good weather increases all times by a factor of 1.1.
Bad weather increases all times by a factor of 1.25.
Stormy weather increases all times by a factor of 1.5.
A natural disaster increases all times by a factor of 2.0
Great weather, good weather, bad weather, stormy weather, and a natural disaster have the following probabilities of occurrence: 0.6, 0.25, 0.1, 0.04, and 0.01 respectively.
All these probabilities (weightings) sum to 1.
Use SUMPRODUCT to calculate the estimated hours of work to complete the landscaping.
Please answer using the format ###.##
Thanks!!
[TABLE="width: 949"]
<colgroup><col><col span="2"><col><col><col><col></colgroup><tbody>[TR]
[TD]Weighting[/TD]
[TD]0.01[/TD]
[TD]0.04[/TD]
[TD]0.1[/TD]
[TD]0.25[/TD]
[TD]0.6[/TD]
[TD] [/TD]
[/TR]
[TR]
[TD]High Level Tasks[/TD]
[TD]Natural Disaster[/TD]
[TD]Stormy Weather[/TD]
[TD]Bad Weather[/TD]
[TD]Good Weather[/TD]
[TD]Great Weather[/TD]
[TD]Estimated Hours[/TD]
[/TR]
[TR]
[TD]Driveway[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]20[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Backyard[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]30[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Front yard[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]25[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Back veranda[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]25[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Front porch[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]20[/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]TOTAL HOURS[/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD]0.0[/TD]
[/TR]
</tbody>[/TABLE]
Question 1
The following file describes the situation faced by a landscaping company, 'Landscaping Solutions'.
If there is great weather, the company takes the following hours to complete a driveway, backyard, front yard, back verandah, and front porch: 20, 30, 25, 25, and 20 hours respectively.
Good weather increases all times by a factor of 1.1.
Bad weather increases all times by a factor of 1.25.
Stormy weather increases all times by a factor of 1.5.
A natural disaster increases all times by a factor of 2.0
Great weather, good weather, bad weather, stormy weather, and a natural disaster have the following probabilities of occurrence: 0.6, 0.25, 0.1, 0.04, and 0.01 respectively.
All these probabilities (weightings) sum to 1.
Use SUMPRODUCT to calculate the estimated hours of work to complete the landscaping.
Please answer using the format ###.##
Thanks!!
[TABLE="width: 949"]
<colgroup><col><col span="2"><col><col><col><col></colgroup><tbody>[TR]
[TD]Weighting[/TD]
[TD]0.01[/TD]
[TD]0.04[/TD]
[TD]0.1[/TD]
[TD]0.25[/TD]
[TD]0.6[/TD]
[TD] [/TD]
[/TR]
[TR]
[TD]High Level Tasks[/TD]
[TD]Natural Disaster[/TD]
[TD]Stormy Weather[/TD]
[TD]Bad Weather[/TD]
[TD]Good Weather[/TD]
[TD]Great Weather[/TD]
[TD]Estimated Hours[/TD]
[/TR]
[TR]
[TD]Driveway[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]20[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Backyard[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]30[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Front yard[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]25[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Back veranda[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]25[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Front porch[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]20[/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]TOTAL HOURS[/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD]0.0[/TD]
[/TR]
</tbody>[/TABLE]