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.
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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.