Standard normal bootstrap confidence interval

1. What is the bootstrap confidence interval?
2. What is a normal 95% confidence interval?
3. How do you interpret bootstrap confidence interval?
4. How do you find the standard normal confidence interval?
5. Is a 99.7 confidence interval wider than 95?

What is the bootstrap confidence interval?

It creates multiple resamples (with replacement) from a single set of observations, and computes the effect size of interest on each of these resamples. The bootstrap resamples of the effect size can then be used to determine the 95% CI. With computers, we can perform 5000 resamples very easily.

What is a normal 95% confidence interval?

A 95% confidence interval for the standard normal distribution, then, is the interval (-1.96, 1.96), since 95% of the area under the curve falls within this interval.

How do you interpret bootstrap confidence interval?

Let's say you calculated 95% confidence interval from bootstrapped resamples. Now the interpretation is: "95% of the times, this bootstrap method accurately results in a confidence interval containing the true population parameter".

How do you find the standard normal confidence interval?

Since 95% of values fall within two standard deviations of the mean according to the 68-95-99.7 Rule, simply add and subtract two standard deviations from the mean in order to obtain the 95% confidence interval.

Is a 99.7 confidence interval wider than 95?

A 99 percent confidence interval would be wider than a 95 percent confidence interval (for example, plus or minus 4.5 percent instead of 3.5 percent). A 90 percent confidence interval would be narrower (plus or minus 2.5 percent, for example).