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What conditions must be met to test a hypothesis about a population proportion? What test statistic...

What conditions must be met to test a hypothesis about a population proportion?

What test statistic would we use when comparing two population proportions?

What test statistic would we use when comparing observed vs. expected frequencies?

If my degrees of freedom were 7 and I am comparing observed and expected frequencies at a 0.01 level of significance. What would my critical value be?

Math   Statistics-And-Probability   
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