A bigger hoop is better: why confidence intervals get wider as the confidence increases
Joe, I think you are understanding confidence intervals, but I am not sure I am understanding your comments. So, let me restate them a bit. A 95% confidence interval means that if you repeat exactly… A bigger hoop is better: why confidence intervals get wider as the confidence increases
Confidence Interval for Difference Between Proportions
Enter your data in the blue cells and the answers will be in the yellow cells.
Minimum Sample Size for Population Mean given c, sigma, E
Enter your data in the blue cells and the minimum sample size will be in the yellow cell at the bottom. Note: the standard deviation and E must be in the same units (e.g. inches,… Minimum Sample Size for Population Mean given c, sigma, E
Confidence Interval for a Mean using StatCrunch
If you are given summary data and asked to find a confidence interval, it is relatively easy using StatCrunch. Here is a typical problem: In this problem, you are told to use the t-distribution, but… Confidence Interval for a Mean using StatCrunch