1 Sample Mean t-Confidence Interval

I introduce the t-distribution and work through an example of a 1 Sample Mean t-Confidence Interval. EXAMPLE AT 9:34 Some annotations are included: Normality: With n greater than 30 the Central Limit Theorem ensures the sampling distribution of averages will be approximately Normal. Make a connection between your problems n and standard size of 30. In Example: Normality: As long as the population distribution has no outliers and no strong skewness, the Central Limit Theorem should ensure the sampling distribution of sample means will be approximately Normal. Check out http://www.ProfRobBob.com/, there you will find my lessons organized by class/subject and then by topics within each class. Find free review test, useful notes and more at http://www.mathplane.com/ If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage    / profrobbob