QUESTION 1 For the t distribution with 11 degrees of freedom, find the value for which...

Question

Question

QUESTION 1 For the t distribution with 11 degrees of freedom, find the value for which the upper tail area is 0.25. QUESTION

Answer 1

Answer #1

Solution :

Given that ,

Using t table

df = 11

a ) P ( t > t ) = 0.25

1 - P ( t < t ) = 0.25

P ( t < t ) 1 - 0.25

P ( t < t ) = 0.75

P ( t (11) > 0.697 ) = 0.25

t =0.697

b) df =17

P ( t < 2.11 )

= 0.9750

The area = 0.9750

Answer 2

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