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6-71

(ﻞﺻﺍﻮﺘﻣ) ﻊﻳﺯﻮﺗ k

ﻊﻳﺯﻮﺗﺔﻴﻟﺎﻤﺘﺣﺍ ﺔﻓﺎﺜﻛ

ﻲﻤﻛﺍﺮﺗ ﻊﻳﺯﻮﺗ

ﻲﻌﻴﺒﻃ ﻊﻳﺯﻮﺗ

πσ

2

p(x) =

1

e

–

2

2

σ

(x – μ)

2

μ

(

> 0)

σ

p = p(x)dx

Upper

Lower

∫

t-ﺖﻧﺩﻮﻴﺘﺴﻟ ﻊﻳﺯﻮﺗ

p(x) =

×

Γ

Γ

× df

π

–

df+1

2

2

df

2

df + 1

df

x

2

1 +

χ

2

ﻊﻳﺯﻮﺗ

p(x) =

×

(x ⭌ 0)

Γ

1

2

df

df

2

×

x

2

1

df

2

–1

x

2

–

× e

F ﻊﻳﺯﻮﺗ

ndf

2

x

ddf

ndf

ndf

2

–1

ddf

ndf × x

1 +

ndf + ddf

2

p(x) =

–

Γ

2

ndf + ddf

Γ

2

ndf

× Γ

2

ddf

(x ⭌ 0)

ﻊﻳﺯﻮﺗ

ﺱﻮﻜﻌﻣ ﻲﻤﻛﺍﺮﺗ ﻊﻳﺯﻮﺗ

ﻲﻌﻴﺒﻃ ﻊﻳﺯﻮﺗ

p = p(x)dx

Upper

Lower

∫

p = p(x)dx

Lower

∞

∫

p = p(x)dx

Upper

–∞

∫

tail = Central tail = Right tail = Left

t -ﺖﻧﺩﻮﻴﺘﺴﻟ ﻊﻳﺯﻮﺗ

p = p(x)dx

Lower

∞

∫

χ

2

ﻊﻳﺯﻮﺗ

F ﻊﻳﺯﻮﺗ