How To Find The Z Score, Confidence Interval, and Margin of Error for a Population Mean
This statistics video tutorial explains how to find the z-score that will be used to find the confidence interval and margin of error for a population mean. This video contains 2 example problems in which you're asked to find a 90% and 95% confidence interval given the population standard deviation, sample mean, and sample size. By the way, the margin of error is also known as the error bound. This video also explains the difference between the confidence interval and the confidence level. It also discusses the meaning of the greek symbol alpha as it is used in this context.
Introduction to Statistics:
https://www.youtube.com/watch?v=XZo4xyJXCak
Introduction to Probability:
https://www.youtube.com/watch?v=SkidyDQuupA
Central Limit Theorem:
https://www.youtube.com/watch?v=4YLtvNeRIrg
Standard Error of The Mean:
https://www.youtube.com/watch?v=UuHqq09nTAk
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Confidence Intervals & Margin of Error:
https://www.youtube.com/watch?v=DT-fPG0Hff8
Find The Z-Score Given Confidence Interval:
https://www.youtube.com/watch?v=sJyZ9vRhP7o
How To Calculate The Sample Size:
https://www.youtube.com/watch?v=nkkxu09K3ZA
Student's T-Distribution:
https://www.youtube.com/watch?v=MUD390jtgQs
Confidence Interval-Population Proportion:
https://www.youtube.com/watch?v=_aQTgv_OOSU
Chebyshev's Theorem:
https://www.youtube.com/watch?v=ZXq0ygaZuwg
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Hypothesis Testing - Null & Alternative:
https://www.youtube.com/watch?v=wiYJWyfdGg4
Type I and Type II Errors:
https://www.youtube.com/watch?v=9yQm9F2_yIk
One Tailed and Two Tailed Tests:
https://www.youtube.com/watch?v=XHPIEp-3yC0
Test Static For Means & Pop Proportions:
https://www.youtube.com/watch?v=Hag0GW9B6EY
Hypothesis Testing Problems:
https://www.youtube.com/watch?v=zJ8e_wAWUzE
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Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio