Confidence intervals - simply explained

In this video, we will learn how to calculate and interpret confidence intervals based on large samples or when the population standard deviation is known. Watch the video about the t-distribution to see how confidence intervals are calculated for small samples.
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[@nishanttailor4786]

Great Videos!!

[@kalifalau1455]

how can you know the standard deviation of the population when estimating the mean value of the population?

[@kalifalau1455]

ohh its in the second half of the vedio...

[@jonathanrush9760]

When estimating the population mean using the sample mean and confidence intervals, why is it limited to 95%? why not do it so that we will have a 100% confidence interval?

[@tilestats]

A 100% confidence interval would mean that you are 100% confident that it included the true population mean. To be 100% confident, the interval would need to be infinitely wide because you have only taken a sample from the population. Suppose that you flip a coin 1000 times, then you can actually not be 100% sure to get at least one head (but you can be 99.99999... % sure).