Find the critical value $t _ { \alpha / 2 }$ needed to construct a confidence interval of the given level with the given sample size. Level 98%, sample size 5
A) 3.365
B) 2.999
C) 2.326
D) 3.747

Question

Quizplus · Accepted Answer

For a 98% confidence interval with a sample size of 5, the degrees of freedom (df) is 5 - 1 = 4. Looking up the critical value $t_{\alpha/2}$ in a t-distribution table for 98% confidence and 4 degrees of freedom, we find the value closest to 3.747.

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

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