In: Statistics and Probability
What does a 95% confidence interval mean?
95% confidence interval is calculated using the mean value, standard deviation, sample size and critical value corresponding to 95% confidence level
95% confidence interval tells us about the possible range of values within which we can expect our population parameter.
For example, if we have calculated a 95% confidence interval for population proportion and we get confidence interval (0.56,0.75)
Then we can say that we are 95% confident that the true proportion will be found within the range of 0.56 and 0.75