a = 0.8 , b = 1 , n = 20 .  
q = quantile,
e = Estimated quantile, using formula and p1 = sqrt(q),
s = Simulated quantile, from  1e+06  simulations
(each summing  20  Paretos),


r = ratio (est/sim).


--------------------------------------
q:    e:    s:    r:
--------------------------------------


1e-04    33.42385    35.36567    0.9450932 
0.001    38.9135    40.35145    0.9643643 
0.005    45.31833    46.32203    0.978332 
0.01    49.31684    49.96399    0.9870476 
0.02    54.58036    54.72167    0.9974177 
0.03    58.51855    58.27811    1.004126 
0.04    61.84862    61.25984    1.009611 
0.05    64.82376    63.91779    1.014174 
0.06    67.56641    66.35585    1.018243 
0.07    70.14632    68.63685    1.021992 
0.08    72.60754    70.82527    1.025164 
0.09    74.97997    72.94325    1.027922 
0.1    77.28502    74.96658    1.030926 
0.2    98.96763    94.24076    1.050157 
0.3    121.6000    114.5326    1.061706 
0.4    148.1547    138.7132    1.068065 
0.5    181.9036    170.3381    1.067897 
0.6    228.4594    215.5852    1.059718 
0.7    299.9847    290.4832    1.032709 
0.8    430.7288    441.2296    0.976201 
0.9    777.8979    920.7534    0.8448493