Is the proportion of members of one group the same as the proportion of the members of another group? If the groups are independent, we can extend inferential techniques for a single proportion to comparing proportions between two groups.
Stream the video without the embedded quiz questions by clicking on the video link below. Closed captions are available.
Notes on the video: Comparing Two Proportions
A point to consider for this video:
This video refers to a poll on Toronto residents’ opinion about their mayor, Rob Ford. The particular poll was carried out early in his time as mayor, before several notorious events became public.