... dose and ICR as functions of
the other variables, with the @Risk add-on activated. Each
recalculation of the spreadsheet then produced new random values
for IR and BW, and consequently for dose and ... 3.8249 0.1951
11. 4 Further Information
A good starting point for more information is the Risk Assessment
Forum home page (United States Environmental Protection Agency,
2000)....
... model
y
t
- "y
t-1
= $
0
(1 - ") + $
1
(x
1t
- "x
1t-1
) + + $
p
(x
pt
- "x
pt-1
) + ,
t
- ",
t-1
or
z
t
= ( + $
1
v
1t
+ + $
p
v
pt
+ u
t
,
where z
t
= y
t
- "y
t-1
, ... pairwise observations,
n i - 1
S = 3 3 sign(x
i
- x
j
), (8.14)
i = 2 j = 1
where sign(z) is -1 for z < 0, 0 for z = 0, and +1 for z...
... (x
1j
- x
1
) + (x
2j
- x
2
) + + (x
ij
- x
i
), (5.3)
for j from 1 to m and i from 1 to n, and plotting the S
ij
values against i,
for each of the m sample times.
The CUSUM chart for time ... plots for 1976, 1977, 1978 and 1981 compared to the mean for all years. The horizontal axis corresponds to lakes
in the order of mean pH values for the four years....