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File name : CBM_SR285,A_HDBSR285T19_Chinese.doc
version : 2010/04/26
3.
[ STATVAR ]
並藉由
[
]
[
]
捲動統計結果的選單,找出
你想要的或然率分配變數
(
見下表
)
變數 意義
t
檢驗值
P ( t )
代表標準常態分配中,小於
t
值的累積區域
R ( t )
代表標準常態分配中,位於
t
0
值間的累積區
R ( t ) =1 – ( t )
Q ( t )
代表標準常態分配中,大於
t
值的累積區域
Q ( t ) = | 0.5 – ( t ) |
線性回歸
步驟:
(
請參閱範例
56. )
1.
依據
2
VAR
模式中的數據值,按
[ STATVAR ]
並藉
[
]
[
]
捲動統計結果選單,找出
a
,
b
,
r
2.
經給定
y
值之後回歸計算
x
時,選
x '
變數後按
[ ]
輸入一數值,再按
[ ]
即可;若想經由給定一
x
值回歸計
算一
y
值時,選擇
y '
變數後按
[ ]
,輸入一數值,再按
[ ]
即可
(
見下表
)
變數 意義
a
線性回歸的常數項
=
x
n
by
a
b
線性回歸的回歸係數
∑∑
∑∑
=
))x(xn(
)yxxyn(
b
22
r
相關係數
∑∑
∑∑
=
))y(yn)()x(xn(
)yxxyn(
r
2222
x '
給定
a, b, y
值回歸計算
x
b
ay
'x
=
y '
給定
a, b, x
值回歸計算
y
bxa'y +=
修正數據
步驟:
(
請參閱範例
57. )
1.
[ DATA ].
2.
欲變更
1
VAR
模式下的
x
數據值或
x
數據的權數值
FREQ
(
者是
2
VAR
模式下的對應的
y
數據值
)
請選擇
DATA–INPUT
欲變更規格上限值、規格上限值,請選擇
LIMIT–SET
;欲變更
ax
值,請選擇
DISTR
3.
[
]
檢視你鍵入的數據資料。
242


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