Jonathan Adams
Shell Gabon
1. 140,640,200 / (120,000*365) = 3.21 per barrel. Barrels of oil is a cost driver for some of
the activities in RDS. It will help them control costs of production and recognize which
activities are most costly.
2. Costs directly

Q4.21
Per The World Almanac, 2009
Age
18-24
25-34
35-44
45-54
55-64
65 and over
TOTAL
Number(in millions)
Probability
29.8 0.13093146
40 0.17574692
43.4 0.19068541
43.9 0.19288225
32.7 0.14367311
37.8 0.16608084
227.6
1
Assume a person is chosen randomly

Sample size:
Standard Deviation:
Confidence Level 90% means a Confidence Coefficient of ?
This means an alpha of 1-.90 or.
So, now use the function to determine the margin of error
And if the mean is 19.5
What's the lower limit?
What's the upper limit?
65

Q4.21
Per The World Almanac, 2009
Age
18-24
25-34
35-44
45-54
55-64
65 and over
TOTAL
Number(in millions)
Probability
29.8 0.13093146
40 0.17574692
43.4 0.19068541
43.9 0.19288225
32.7 0.14367311
37.8 0.16608084
227.6
1
Assume a person is chosen randomly

In Office 2013, you will use =NORM.DIST. In Office 2007, you will use =NORMDIST.
I'm honestly not sure which Office 2010 uses - but probably NORM.DIST.
Then we have 4 parameters we use:
First is the number we're testing
Second is the proportion of the pop