Confidence Intervals #16 | 2024 Business Statistics with R Series

Business Statistics lecture series. #confidenceinterval 0:00 introduction 0:27 Confidence interval for population mean when sigma is unknown 3:36 Normal versus t-distribution 5:45 Normal and t-distribution calculations in R 11:35 What is degrees of freedom? 15:05 Confidence interval for number of hours slept in R using tsum.test function 22:15 95% confidence interval interpretation 23:10 I hear I forget, I see I remember, I do I understand 24:40 Paper helicopter experiment