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#ConfidenceInterval #ConfidenceIntervalMean #ConfidenceIntervalExpectedValue #UnknownVariance How do you calculate the confidence interval for an unknown expected value? I'll show you how to determine the confidence interval for the mean (confidence interval with unknown variance). We calculate the 95% confidence interval and the 99% CI. I'll show you the difference between T-quantile and Z-quantile and how to read the Z-value or T-value from the table or when to choose the T-distribution or normal distribution. I'll also explain how to interpret the confidence interval or confidence interval. ☕ Buy a coffee: https://bit.ly/Kaffeespende-Statistik... ???? Other videos/playlists that might be of interest to you: ◻️ Measures of location: • Measures of location - mode, median, mean ... ◻️ Explanation of confidence intervals: • Confidence interval mean unknown... ◻️ Confidence interval proportion: • Confidence interval proportion value p calculated... ◻️ Confidence intervals playlist: • Confidence intervals ◻️ Inferential statistics playlist: • Inferential statistics - closing stat... ???? Subscribe to the channel: https://www.youtube.com/@Statistikque... Social Media: ???? - FACEBOOK: https://fb.me/Statistikquelle ???? - IG: / statistikquelle ** Professional tutoring in statistics + statistical data analysis ** Are you looking for professional tutoring or support with the statistical evaluation of your Bachelor's/Master's/PhD thesis? Then feel free to write to me at one of my contacts. Here is my website and my references: Website: https://www.christoph-gross.com References: Google: https://g.page/r/Ca0Sh8_mjrScEAg/review Facebook: / c.gross.8 Link to the T-table: https://drive.google.com/file/d/1gB4v... 00:00 Intro 00:32 Confidence interval properties 01:30 Known, unknown variance difference 02:57 Confidence interval for an unknown expected value 03:55 Determine z-quantile (z-value) 05:45 Calculate confidence interval mean 06:44 Interpretation of confidence interval 07:29 T-quantile, Z-quantile difference 08:53 End credits Music: www.bensound.com