What is the z score of a 99 confidence interval? Statistics Organizing and Summarizing Data Measuring Relative Position 1 Answer Shwetank Mauria Mar 4, 2016 #2.576# Explanation: Z score of a #99# confidence interval is #2.576# Answer link Related questions If a person scores in the 45th percentile on the ACT, how do we interpret this? The third quartile, denoted #Q_3#, is the data value such that what percent of the values are below it? What percent of values of a data set are less than the median? What does a z score tell you? Anthony enters a fishing contest. After all the fish are measured, it is announced that the... Find the values of #Q_1#, #Q_2#, and #Q_3# for the following data values: 6, 8, 13, 15, 16, 16, 18 How do I calculate and interpret a z-score? How is a z-score useful in comparing two different distributions? How do you find the z-score for having area 0.09? How do you use z score to find p value? See all questions in Measuring Relative Position Impact of this question 6597 views around the world You can reuse this answer Creative Commons License