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How does the population mean and proportion affect confidence intervals and hypothesis testing?

How does the population mean and proportion affect confidence intervals and hypothesis testing?

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The population means and proportion does not affect confidence intervals because the confidence intervals are based on the sample mean and sample proportion.

The population means and proportion affect hypothesis testing depending on the difference between the hypothesized value and the population parameter. The more the difference between the hypothesized value and the population parameter is, the higher the test statistic is, and the lesser the p-value is.

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