Find the value of tn–1,α needed to construct a 90% upper or lower confidence bound with...
Find the value of tn–1,α needed to construct a 90% upper or lower confidence bound with sample size 12. Round the answer to three decimal places.
Homework Answers
solution;
n = Degrees of freedom = df = n - 1 = 12 - 1 = 11
At 90% upper level the t is ,
= 1 - 90% = 1 - 0.90 = 0.1
t
,df = t0.1,11 = 1.363 ( using student
t table)
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Find the value of tn–1,α
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