For a two-tailed test at 98.4% confidence, Z =
A)1.96
B)1.14
C)2.41
D)0.8612

Question

Quizplus · Accepted Answer

To find the Z score for a 98.4% confidence interval, we need to find the value of alpha (α), which is equal to 1 - Confidence Level.

So, α = 1 - 0.984 = 0.016

Since it's a two-tailed test, we need to divide alpha by 2 to find the area in each tail.

So, α/2 = 0.016/2 = 0.008

Looking up the Z score for 0.008 in the Z table, we get 2.41.

Therefore, the Z score for a two-tailed test at 98.4% confidence is 2.41, and the best choice is C.

For a Two-Tailed Test at 98