Download files (which file shown at begin of video): https://people.highline.edu/mgirvin/AllClasses/210Excel2013/Ch11/Ch11.htm
Topics in this video:
1. (00:13) Introduction to Inference about Difference Between Two Population Proportions
2. (02:35) Reminder from chapter 7 of Proportions
3. (05:14) List of 4 topics for chapter 11
4. (06:00) Introduction to Sampling Distribution of Pbar 1 – Pbar 2
5. (08:46) Construct “Sampling Distribution of Single Par” (something we skipped in chapter 7)
6. (16:07) Construct Sampling Distribution of Pbar 1 – Pbar 2 (Sampling Distribution of Sample Proportions)
7. (18:57) See that Plotting all the “Sampling Distribution of Pbar1 – Pbar2” yields a somewhat symmetric distribution
8. (19:38) Prove that the Population Proportion Difference is equal to “Mean of All The Sampling Proportion Differences”
9. (21:03) Prove that the formula for “Standard Deviation / Standard Error of the Sampling Distribution of Pbar1 – Pbar2” works