99 confidence interval

For 99%. Confidence Interval = (3.30 – 2.58 * 0.5 / √100) to (3.30 + 2.58 * 0.5 / √100) Confidence Interval = 3.17 to 3.43; Lastly, the confidence interval at a 99% confidence level is 3.17 to 3.43. From the above illustration, the confidence interval of a sample spreads out with the increase in confidence level. Explanation 99 door mansion