3.5 Confidence Interval Plus-Minus Standard Error Notation - YouTube
3: Standard error/confidence intervals - YouTube
Confidence Intervals: Example when the Population Standard Deviation is Unknown - YouTube
Confidence Intervals
Confidence Intervals about the Mean, Population Standard Deviation Unknown
Confidence Intervals about the Mean, Population Standard Deviation Unknown - YouTube
What is the length of the confidence interval for an unknown population mean and unknown standard deviation, given x̅= 25, s= 5. 02 and n= 16 with 99% confidence interval? - Quora