Day 16: Sec. 8.1 - 8.3

This is a video about Day 16- Lesson Video (Sec. 8.1 - 8.3)

00:00 Introduction to Point Estimates and Confidence Intervals
00:14 Recap of Unit 2: Probability and Random Variables
01:33 Introduction to Inferential Statistics
01:47 Defining Confidence Levels and Critical Values
04:26 Point Estimates Explained
05:06 Understanding Confidence Intervals
07:17 Calculating Confidence Intervals in Excel
11:10 Example: Confidence Interval for Trump Voters
16:38 Exploring Confidence Intervals for Sample Means
17:52 Example: Confidence Interval for Mice Weights
19:10 Adjusting the Formula for Margin of Error
20:01 Calculating Confidence Intervals with Known Sigma
21:41 Introduction to t Distribution
23:25 Calculating Confidence Intervals with Unknown Sigma
28:06 Interpreting Confidence Intervals
29:43 Determining Sample Size
31:07 Example Problems and Recap