For a one-tailed test (lower tail) at 93.7% confidence, Z =
A)-1.86
B)-1.53
C)-1.96
D)-1.645

Question

Quizplus · Accepted Answer

For a lower tail one-tailed test, we need to find the Z-score that has 93.7% of the area to its left. From a Z-table, the closest value to this is 1.54, which corresponds to a 93.32% confidence level. However, since we want a slightly higher level of confidence, we need to shift slightly to the left, which gives us a Z-score of -1.53. Therefore, the answer is B.

For a One-Tailed Test (Lower Tail) at 93