For a 99% Confidence Interval, You Use the Z Scores

Multiple Choice

For a 99% confidence interval, you use the Z scores for the middle 99% of the normal curve, which comes out to:

A) +1.64 and -1.64
B) +2.58 and -2.58
C) +3.04 and -3.04
D) +1.58 and -1.58