!"##$ % & ' (
) ( * % + ' ( %' *
' (
, ( - ( + - (
, - ( , , - )
! . / !0 '1 21 ) 34 . ) ' 4
! "
# # $ % $&' (
)* # ( # " ( + # (, &
# # ( - # ( (
# ) ( #
( %.( ' # # # ) ( #
#)/ ( # #
# " # /
%012' + %342' (
5 5 % $ ' $& 02
2 * # " #
6 $&
/#
# %4 7 4.' "8 7 7
# # + " # /#
( ) * /# # #
( # * # # #
) # ) * 97: ; # # ) *
, * 5 " # %, ' *
) # *
* 93: ( )*
* 6
* # # # )# #
5 # ) * #
< ( 34 04
=# 9>: ( #
) ) ? @
* AB# C )*
14 - =# D# 9 :
) )* 4
6
9>: * ; 7
)
; 7 E * =# 9>:
* * *
# # )# (
# # ) )
) * 5 #
( )# "
# * " + # # *
# # # *
( # # * #
9 :
* # ) * #
# ( # 90: ( # )
# # * # =# *
# ) # =# + * ( )
( #
( # * # *
* # ) " < * " #
# * # # ) =# *
* 9F:
# " G744H 5 * %) '
I5 344J " * )* )
( " * )*
# # " ( ) #
7>4J )# 3 5 # #
( 7 44J * # I # , . # &
% I,.&' ( * + "
( I * # * )
# K - %K -' " *
* #) ,
%, I' " " * ( 7
# 144 , # " *
#
( " ! & # %!;3' 5 /#
# " ( * )*
# #
)*
# + # $
# #
* * ( "
! I D %!I D' * ( * ) I
& %I &' * #
# ( # #
# # * & % &' #
)
)# ( - ) #
( # & # .D # (
%.( ' ) " # 91:
( ) )* #
% ' # )* ( - 91: ( " # M
$& " #
( # ( ) 7
( ) 7 IK ,- I K -(-K &( - K
-.-! "
" D ( , L7 L34 L3
! & $ > > 3 -7> > >4-7> > > -7>
, ( & 34 3 >4
& $& & $ > L -7 14-7 1 -7
1%> ' * 1 " # ( "
* # # 1%> ' * ( ) 3
( ) 3 -?I-K - ( @ <(< D 1%> ' K( D KK @
#$% &
7 7 7 7 7
3 7 3 3 3
> 7 > > >
3 7 3 >
3 3 > 7
0 3 > 7 3
F > 7 > 3
L > 3 7 >
1 > > 3 7
'
( # " # # ( - # #
; 3 & # .D .&84 4 . .&87 7. (
# 4 7 . ( # ±73 F2 # (
# 4 7 . 974:
# ) 5 5 # .(
, ) " .( ) #
# ( .(
# & ! # #
* 97:
( # .( * ( #
( # ( # # *
( )* &
( # # 1 *
( ) >
( ) > .( . # ; &
#$% &
+ ,+
-7 4 7 13 4 7 3037 4 7 1> 4 7 3717
3 4 7>1>L7 4 7>07F1 4 7>L1 7 4 7> F>1
> 4 7 704 4 7> F37 4 7 77 > 4 7> 30L
4 774>L1 4 774377 4 7411>0 4 741F L
4 7 7 L 4 7 3F 4 7 74 7 4 7 >L
0 4 70 >13 4 70 341 4 70>1 F 4 70>F0>
F 4 73F44 4 7>7 >> 4 730 3 4 7>41F
L 4 7>0L>4 4 7 740 4 7>0>L0 4 7 403
1 4 7073 L 4 70 037 4 704L71 4 70 7F>
( ) 5 5) =# * ( $
=# # + #
977: ( $ K η 5 5) =# * ) " 973 7>:M
σ µ =
η 3
3
74
74 %7'
M
@ @7+ + =
µ %3'
(
)
7
@ 3
7 3
− µ − ∑ =
σ = %>'
6 # ) @ " #
5 5) *
/# !* * -=# %7'5%>' η #
( ) ( $ K )
# ) # " ( $
# ( ) $ 1
" # ( )
( ) - . K ,- & $ K ( ; K &-.
,-#$% & + .& ' , - .& ' ,& / /0
-7 4 7 > F4-540 570 3 >L 7
3 4 7>L > L-540 57F 3 >F
> 4 7>L 7 70-54 57F 3 >3 3
4 774 F 14-54L 571 3 7 1
4 7 > 3 00-540 570 > >1
0 4 70 F F -54L 57 F
F 4 731 0 03-540 57F L > 4
L 4 7>1 0 4 -540 57F 3 > 4
( ) $ K- I - ; K( -( K- &. (
D-.& ' ,& / /0
-.& $
/
! " ! " ! "
" D ( > LF L 14 > 4F
>1 1
7> L>
! & 7 >7 >F 3F 7 30 4
, ( 3 L 7 L4 > 34 F 0
& $& & >F L1 3 30 >1 01 >F
; > ; $ * ! *
$ =# * ) 9F: (
=# * # # %4 7 .' )
# =# * ) 977:
; > $
;
( + , & +
-( * % . ' =#
)# # " ) #
* 97 : #
+ # =# % ' %&;' ;5 #
( # . ( ) 0 * ;5 #
*
;5 # + )
*
" # $& (
$ )# #
( ) 0 K- < ( ; . ; K &-.
,-(
1
(
2
2
1
/+
1
#
((
.&
'
,3
-1
#
(( ,3
-" D ( 3 >03 7L7 > 01 4 03
! & 3 >3 70 > 0 >0 37
, ( 3 74> 7 74 34 70 17
& $& & 3 31 7 > 0 30
; " # # ) /
%012' # ) + %342'
( $ $& 02 2
* + $& ) /# ) #
% 0 302' % 2' $&
) /# L "747 1 "747 $ > ( /# )
# # %4 7 .' ( )
) # )* ( #
( ) F
( ) F !- ( -(( D ; ( -IK ,- I K -(-K
0 +
" D ( , L34
! & $ > > 3 -7>
, ( & 34
& $& & $ > L -7
* #
( # # ( ) L
( ! - L K- < ( ; ( -, ; K ( -?I-K - ( ; K( K- &. (
D-+ ,+
-.&
'
,
-.&
'
,&
/
/0
-4 7 >-431-4 4 7 3L13 4 7 >FL1 4 7 > 0> 570 > 7 7
( $ 7 7 ! ( #
$ 7 71 7 43 ! (
4 7 >. "8 7 7 ( # " *
( * K # % (K ' 974: (
( # # # )
# " #
( * * #
#) ( %.( '
+ ( # # *
) # ! . *
# " # %012' $&
) /#
4 5
( # # + + * - # % -'
# I ) < N ) * %<N ' < ( + + *
+ %<( ' # # # /
' (
97: O D# # * 5, * 6 , 5( # # P # *
I Q K ) * 711L . >L # 1 44305
3F7 7 4>57 73
93: * P. , )* # - R & * Q ( 1
6 + O# ( * 3441 744574>
9>: 6 O # ! D# S * S PI ,
5 < # # Q --- 344 34 534F
9 : ! D# S @ S ; + O # N < O P,
# # Q #
# I * K !M !
3443 . 307 # 753
9 : K + ) D K# @ + 344L *
-I . K # I @ --- , ,&( 344L 7F757F
D )
90: ) # O O# S P # ; ) I
.& ;-( ( < Q -# O # K
3441 7 45370? . 31 075 F4
9F: < # - P ( # K 6
I Q ( ) O # - 3441 . > 3!
9L: # - ) P , ) D &
( + 0 < ( # Q ,
# , ) 3F531 # # 344F
91: + N D P & I < # (, &
( Q I # & 711
M$$ $ # $
974: (K 344F K T M$$
977: . K # P =# * K ) , # 5
# # Q . 3 # 0 7F , ; " )
# # # 344L L775L7
973: & # , * P& * -" Q O 6 * U
0 - 344
97>: I + PB# * - < K )# & Q I - #
& N * I#) 711L
97 : N @ - 5, ( ; N ;# P ( #
Q O # ! 344F . 4