Short Videos on Confidence Intervals-2

Confidence Interval for a Mean (Sigma Known)

https://youtu.be/oA5Ze2tdfZg Links to an external site.

 

Confidence Interval for a Mean (Sigma Unknown)

https://youtu.be/cG_vugWXIn8 Links to an external site.

https://youtu.be/zM0iVTOuiqY Links to an external site.

 

Confidence Interval for a Proportion

https://youtu.be/np-CwMl-O1M Links to an external site.

 

Determining the Sample Size Needed for a Confidence Interval for a Mean

https://youtu.be/ALogfTFy1Bg Links to an external site.

 

Determining the Sample Size Needed for a Confidence Interval for a Proportion (With Preliminary Estimate)

https://youtu.be/8HTRZXRyIMs Links to an external site.

 

Determining the Sample Size Needed for a Confidence Interval for a Proportion (No Preliminary Estimate)

https://youtu.be/uCqPpJoRzCU Links to an external site.