find f005 for an F distribution with Find F005 for an F dist

Find F0.05 for an F distribution with: Population 1 sample size = 9; Population 2 sample size = 6 Numerator d.f. = 10; Denominator d.f. = 15 n1 = 10; n2 = 20

Solution

If 0.05 here is the left tailed area, then

a)

As df1 = n1 - 1 = 8

df2 = n2 - 1 = 5

Then by table/technology,

F = 0.271186539 [ANSWER]

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b)

As df1 = 10

df2 = 15

Then by table/technology,

F = 0.351491807 [ANSWER]

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C)

As df1 = n1 - 1 = 9

df2 = n2 - 1 = 19

Then by table/technology,

F = 0.339253068 [ANSWER]

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If F(0.05) means the F value with RIGHT TAILED AREA of 0.05 in your class, then please use these answers instead:

a) F(0.05) =3.687498666
b) F(0.05) =2.845016527
c) F(0.05) =2.947652047