calculating 95 confidence interval

Online Tutoring Is The Easiest, Most Cost-Effective Way For Students To Get The Help They Need Whenever They Need It.

SIGN UP FOR A FREE TRIAL




95% Confidence level is usually considered as the desired level of confidence in Statistics for a given sample mean. If we consider 100 different samples and evaluate 95% confidence interval for each sample, then 95% confidence interval means nearly 95 out of 100 confidence interval contains the true population mean. 95 Confidence interval calculator is the online tool which can evaluate this interval value.



Example 1: Given sample size in a given population is 12. If the standard deviation is 22 and the sample mean is 30, find the 95% confidence interval for the given mean number.

In order to find the 95% confidence interval (μ), we can use the formula:







Example 2: Given sample size in a given population is 5. If the standard deviation is 7 and the sample mean is 16, find the 95% confidence interval for the given mean number.

In order to find the 95% confidence interval (μ), we can use the formula:




HAVE A QUESTION? Chat With Our Tutoring Experts Now