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Margin Calculation: Random Component
The margin that would be needed to ensure a coverage of at least 95%
p
p
s
s
= =
=
,0 ,95.0
norminv
2
2
,0 ,95.0
norminv
rand
pen
p
s
s
s
= =
=
M =
1.64s
2
s
p
2
- 1.64s
p
M =
0.7s