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Find the Critical Value $t _ { \alpha / 2 }$

Question 14
Multiple Choice
Question 14
Multiple Choice

Find the critical value $t _ { \alpha / 2 }$ needed to construct a confidence interval of the given level with the given sample size. Level 95 % , sample size 11

A) 1.812
B) 1.960
C) 2.228
D) 2.201

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