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At the Statistics Canada Web site, you can find the percent of adults in each province or territory who have at least a university certificate, diploma, or degree at bachelor's level or above.

It makes no sense to find x bar for these data and use it to get a confidence interval for the mean percent u in all 13 provinces or territories. Why not?

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You need to weight the provinces for province population first. Some of them are very sparsely populated.

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